---
_id: '12485'
abstract:
- lang: eng
  text: In this paper we introduce the critical variational setting for parabolic
    stochastic evolution equations of quasi- or semi-linear type. Our results improve
    many of the abstract results in the classical variational setting. In particular,
    we are able to replace the usual weak or local monotonicity condition by a more
    flexible local Lipschitz condition. Moreover, the usual growth conditions on the
    multiplicative noise are weakened considerably. Our new setting provides general
    conditions under which local and global existence and uniqueness hold. Moreover,
    we prove continuous dependence on the initial data. We show that many classical
    SPDEs, which could not be covered by the classical variational setting, do fit
    in the critical variational setting. In particular, this is the case for the Cahn-Hilliard
    equations, tamed Navier-Stokes equations, and Allen-Cahn equation.
acknowledgement: The first author has received funding from the European Research
  Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement No 948819) . The second author is supported by the VICI subsidy
  VI.C.212.027 of the Netherlands Organisation for Scientific Research (NWO).
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
- first_name: Mark
  full_name: Veraar, Mark
  last_name: Veraar
citation:
  ama: Agresti A, Veraar M. The critical variational setting for stochastic evolution
    equations. <i>Probability Theory and Related Fields</i>. 2024;188:957-1015. doi:<a
    href="https://doi.org/10.1007/s00440-023-01249-x">10.1007/s00440-023-01249-x</a>
  apa: Agresti, A., &#38; Veraar, M. (2024). The critical variational setting for
    stochastic evolution equations. <i>Probability Theory and Related Fields</i>.
    Springer Nature. <a href="https://doi.org/10.1007/s00440-023-01249-x">https://doi.org/10.1007/s00440-023-01249-x</a>
  chicago: Agresti, Antonio, and Mark Veraar. “The Critical Variational Setting for
    Stochastic Evolution Equations.” <i>Probability Theory and Related Fields</i>.
    Springer Nature, 2024. <a href="https://doi.org/10.1007/s00440-023-01249-x">https://doi.org/10.1007/s00440-023-01249-x</a>.
  ieee: A. Agresti and M. Veraar, “The critical variational setting for stochastic
    evolution equations,” <i>Probability Theory and Related Fields</i>, vol. 188.
    Springer Nature, pp. 957–1015, 2024.
  ista: Agresti A, Veraar M. 2024. The critical variational setting for stochastic
    evolution equations. Probability Theory and Related Fields. 188, 957–1015.
  mla: Agresti, Antonio, and Mark Veraar. “The Critical Variational Setting for Stochastic
    Evolution Equations.” <i>Probability Theory and Related Fields</i>, vol. 188,
    Springer Nature, 2024, pp. 957–1015, doi:<a href="https://doi.org/10.1007/s00440-023-01249-x">10.1007/s00440-023-01249-x</a>.
  short: A. Agresti, M. Veraar, Probability Theory and Related Fields 188 (2024) 957–1015.
das_tickbox: '1'
dataavailabilitystatement: Data sharing not applicable to this article as no datasets
  were generated or analysed during the current study.
date_created: 2023-02-02T10:45:15Z
date_published: 2024-04-01T00:00:00Z
date_updated: 2026-10-15T09:45:31Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s00440-023-01249-x
ec_funded: 1
external_id:
  arxiv:
  - '2206.00230'
  isi:
  - '001154226500001'
file:
- access_level: open_access
  checksum: b8572339dbc5b8de4934dc5fd34afc7d
  content_type: application/pdf
  creator: dernst
  date_created: 2024-07-22T09:21:09Z
  date_updated: 2024-07-22T09:21:09Z
  file_id: '17296'
  file_name: 2024_ProbTheory_Agresti.pdf
  file_size: 942801
  relation: main_file
  success: 1
file_date_updated: 2024-07-22T09:21:09Z
fulldoi: https://doi.org/10.1007/s00440-023-01249-x
has_accepted_license: '1'
intvolume: '       188'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '04'
oa: 1
oa_version: Published Version
page: 957-1015
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: Probability Theory and Related Fields
publication_identifier:
  eissn:
  - 1432-2064
  issn:
  - 0178-8051
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: not applicable
scopus_import: '1'
status: public
supplementarymaterial: no
title: The critical variational setting for stochastic evolution equations
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 188
year: '2024'
...
---
_id: '12178'
abstract:
- lang: eng
  text: In this paper we consider the stochastic primitive equation for geophysical
    flows subject to transport noise and turbulent pressure. Admitting very rough
    noise terms, the global existence and uniqueness of solutions to this stochastic
    partial differential equation are proven using stochastic maximal L² regularity,
    the theory of critical spaces for stochastic evolution equations, and global a
    priori bounds. Compared to other results in this direction, we do not need any
    smallness assumption on the transport noise which acts directly on the velocity
    field and we also allow rougher noise terms. The adaptation to Stratonovich type
    noise and, more generally, to variable viscosity and/or conductivity are discussed
    as well.
acknowledgement: The authors thank the anonymous referees for their helpful comments
  and suggestions. Open Access funding enabled and organized by Projekt DEAL.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
- first_name: Matthias
  full_name: Hieber, Matthias
  last_name: Hieber
- first_name: Amru
  full_name: Hussein, Amru
  last_name: Hussein
- first_name: Martin
  full_name: Saal, Martin
  last_name: Saal
citation:
  ama: 'Agresti A, Hieber M, Hussein A, Saal M. The stochastic primitive equations
    with transport noise and turbulent pressure. <i>Stochastics and Partial Differential
    Equations: Analysis and Computations</i>. 2024;12:53-133. doi:<a href="https://doi.org/10.1007/s40072-022-00277-3">10.1007/s40072-022-00277-3</a>'
  apa: 'Agresti, A., Hieber, M., Hussein, A., &#38; Saal, M. (2024). The stochastic
    primitive equations with transport noise and turbulent pressure. <i>Stochastics
    and Partial Differential Equations: Analysis and Computations</i>. Springer Nature.
    <a href="https://doi.org/10.1007/s40072-022-00277-3">https://doi.org/10.1007/s40072-022-00277-3</a>'
  chicago: 'Agresti, Antonio, Matthias Hieber, Amru Hussein, and Martin Saal. “The
    Stochastic Primitive Equations with Transport Noise and Turbulent Pressure.” <i>Stochastics
    and Partial Differential Equations: Analysis and Computations</i>. Springer Nature,
    2024. <a href="https://doi.org/10.1007/s40072-022-00277-3">https://doi.org/10.1007/s40072-022-00277-3</a>.'
  ieee: 'A. Agresti, M. Hieber, A. Hussein, and M. Saal, “The stochastic primitive
    equations with transport noise and turbulent pressure,” <i>Stochastics and Partial
    Differential Equations: Analysis and Computations</i>, vol. 12. Springer Nature,
    pp. 53–133, 2024.'
  ista: 'Agresti A, Hieber M, Hussein A, Saal M. 2024. The stochastic primitive equations
    with transport noise and turbulent pressure. Stochastics and Partial Differential
    Equations: Analysis and Computations. 12, 53–133.'
  mla: 'Agresti, Antonio, et al. “The Stochastic Primitive Equations with Transport
    Noise and Turbulent Pressure.” <i>Stochastics and Partial Differential Equations:
    Analysis and Computations</i>, vol. 12, Springer Nature, 2024, pp. 53–133, doi:<a
    href="https://doi.org/10.1007/s40072-022-00277-3">10.1007/s40072-022-00277-3</a>.'
  short: 'A. Agresti, M. Hieber, A. Hussein, M. Saal, Stochastics and Partial Differential
    Equations: Analysis and Computations 12 (2024) 53–133.'
das_tickbox: '1'
dataavailabilitystatement: This manuscript has no associated data.
date_created: 2023-01-12T12:12:29Z
date_published: 2024-03-01T00:00:00Z
date_updated: 2026-10-15T09:44:54Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s40072-022-00277-3
external_id:
  arxiv:
  - '2109.09561'
  isi:
  - '000874389000001'
file:
- access_level: open_access
  checksum: 59c9000761134d681bdf9d482664044c
  content_type: application/pdf
  creator: dernst
  date_created: 2024-07-22T09:29:48Z
  date_updated: 2024-07-22T09:29:48Z
  file_id: '17297'
  file_name: 2024_StochasticsEquations_Agresti.pdf
  file_size: 1206413
  relation: main_file
  success: 1
file_date_updated: 2024-07-22T09:29:48Z
fulldoi: https://doi.org/10.1007/s40072-022-00277-3
has_accepted_license: '1'
intvolume: '        12'
isi: 1
keyword:
- Applied Mathematics
- Modeling and Simulation
- Statistics and Probability
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 53-133
publication: 'Stochastics and Partial Differential Equations: Analysis and Computations'
publication_identifier:
  eissn:
  - 2194-041X
  issn:
  - 2194-0401
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: not applicable
scopus_import: '1'
status: public
supplementarymaterial: yes
title: The stochastic primitive equations with transport noise and turbulent pressure
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 12
year: '2024'
...
---
_id: '17372'
abstract:
- lang: eng
  text: 'In this paper, we investigate the global well-posedness of reaction-diffusion
    systems with transport noise on the  d-dimensional torus. We show new global well-posedness
    results for a large class of scalar equations (e.g. the Allen-Cahn equation),
    and dissipative systems (e.g. equations in coagulation dynamics). Moreover, we
    prove global well-posedness for two weakly dissipative systems: Lotka-Volterra
    equations for  d∈{1,2,3,4}  and the Brusselator for  d∈{1,2,3}. Many of the results
    are also new without transport noise. The proofs are based on maximal regularity
    techniques, positivity results, and sharp blow-up criteria developed in our recent
    works, combined with energy estimates based on Itô''s formula and stochastic Gronwall
    inequalities. Key novelties include the introduction of new  Lζ -coercivity/dissipativity
    conditions and the development of an  Lp(Lq) -framework for systems of reaction-diffusion
    equations, which are needed when treating dimensions  d∈{2,3}  in the case of
    cubic or higher order nonlinearities.'
acknowledgement: The first author’s research was supported by the European Research
  Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
  grant 948819. . The second author’s research was supported by the VICI subsidy VI.C.212.027
  of the Netherlands Organisation for Scientific Research (NWO).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
- first_name: Mark
  full_name: Veraar, Mark
  last_name: Veraar
citation:
  ama: 'Agresti A, Veraar M. Reaction-diffusion equations with transport noise and
    critical superlinear diffusion: Global well-posedness of weakly dissipative systems.
    <i>SIAM Journal on Mathematical Analysis</i>. 2024;56(4):4870-4927. doi:<a href="https://doi.org/10.1137/23M1562482">10.1137/23M1562482</a>'
  apa: 'Agresti, A., &#38; Veraar, M. (2024). Reaction-diffusion equations with transport
    noise and critical superlinear diffusion: Global well-posedness of weakly dissipative
    systems. <i>SIAM Journal on Mathematical Analysis</i>. Society for Industrial
    and Applied Mathematics. <a href="https://doi.org/10.1137/23M1562482">https://doi.org/10.1137/23M1562482</a>'
  chicago: 'Agresti, Antonio, and Mark Veraar. “Reaction-Diffusion Equations with
    Transport Noise and Critical Superlinear Diffusion: Global Well-Posedness of Weakly
    Dissipative Systems.” <i>SIAM Journal on Mathematical Analysis</i>. Society for
    Industrial and Applied Mathematics, 2024. <a href="https://doi.org/10.1137/23M1562482">https://doi.org/10.1137/23M1562482</a>.'
  ieee: 'A. Agresti and M. Veraar, “Reaction-diffusion equations with transport noise
    and critical superlinear diffusion: Global well-posedness of weakly dissipative
    systems,” <i>SIAM Journal on Mathematical Analysis</i>, vol. 56, no. 4. Society
    for Industrial and Applied Mathematics, pp. 4870–4927, 2024.'
  ista: 'Agresti A, Veraar M. 2024. Reaction-diffusion equations with transport noise
    and critical superlinear diffusion: Global well-posedness of weakly dissipative
    systems. SIAM Journal on Mathematical Analysis. 56(4), 4870–4927.'
  mla: 'Agresti, Antonio, and Mark Veraar. “Reaction-Diffusion Equations with Transport
    Noise and Critical Superlinear Diffusion: Global Well-Posedness of Weakly Dissipative
    Systems.” <i>SIAM Journal on Mathematical Analysis</i>, vol. 56, no. 4, Society
    for Industrial and Applied Mathematics, 2024, pp. 4870–927, doi:<a href="https://doi.org/10.1137/23M1562482">10.1137/23M1562482</a>.'
  short: A. Agresti, M. Veraar, SIAM Journal on Mathematical Analysis 56 (2024) 4870–4927.
corr_author: '1'
das_tickbox: '0'
date_created: 2024-08-04T22:01:21Z
date_published: 2024-08-01T00:00:00Z
date_updated: 2026-10-15T09:43:41Z
day: '01'
department:
- _id: JuFi
doi: 10.1137/23M1562482
ec_funded: 1
external_id:
  arxiv:
  - '2301.06897'
  isi:
  - '001315424500021'
fulldoi: https://doi.org/10.1137/23M1562482
intvolume: '        56'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2301.06897
month: '08'
oa: 1
oa_version: Preprint
page: 4870-4927
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: SIAM Journal on Mathematical Analysis
publication_identifier:
  eissn:
  - 1095-7154
  issn:
  - 0036-1410
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: 'Reaction-diffusion equations with transport noise and critical superlinear
  diffusion: Global well-posedness of weakly dissipative systems'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 56
year: '2024'
...
---
_id: '14884'
abstract:
- lang: eng
  text: We perform a stochastic homogenization analysis for composite materials exhibiting
    a random microstructure. Under the assumptions of stationarity and ergodicity,
    we characterize the Gamma-limit of a micromagnetic energy functional defined on
    magnetizations taking value in the unit sphere and including both symmetric and
    antisymmetric exchange contributions. This Gamma-limit corresponds to a micromagnetic
    energy functional with homogeneous coefficients. We provide explicit formulas
    for the effective magnetic properties of the composite material in terms of homogenization
    correctors. Additionally, the variational analysis of the two exchange energy
    terms is performed in the more general setting of functionals defined on manifold-valued
    maps with Sobolev regularity, in the case in which the target manifold is a bounded,
    orientable smooth surface with tubular neighborhood of uniform thickness. Eventually,
    we present an explicit characterization of minimizers of the effective exchange
    in the case of magnetic multilayers, providing quantitative evidence of Dzyaloshinskii’s
    predictions on the emergence of helical structures in composite ferromagnetic
    materials with stochastic microstructure.
acknowledgement: All authors acknowledge support of the Austrian Science Fund (FWF)
  through the SFB project F65. The research of E. Davoli and L. D’Elia has additionally
  been supported by the FWF through grants V662, Y1292, and P35359, as well as from
  OeAD through the WTZ grant CZ09/2023.
article_number: '30'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Elisa
  full_name: Davoli, Elisa
  last_name: Davoli
- first_name: Lorenza
  full_name: D’Elia, Lorenza
  last_name: D’Elia
- first_name: Jonas
  full_name: Ingmanns, Jonas
  id: 71523d30-15b2-11ec-abd3-f80aa909d6b0
  last_name: Ingmanns
  orcid: 0009-0008-1310-7946
citation:
  ama: Davoli E, D’Elia L, Ingmanns J. Stochastic homogenization of micromagnetic
    energies and emergence of magnetic skyrmions. <i>Journal of Nonlinear Science</i>.
    2024;34(2). doi:<a href="https://doi.org/10.1007/s00332-023-10005-3">10.1007/s00332-023-10005-3</a>
  apa: Davoli, E., D’Elia, L., &#38; Ingmanns, J. (2024). Stochastic homogenization
    of micromagnetic energies and emergence of magnetic skyrmions. <i>Journal of Nonlinear
    Science</i>. Springer Nature. <a href="https://doi.org/10.1007/s00332-023-10005-3">https://doi.org/10.1007/s00332-023-10005-3</a>
  chicago: Davoli, Elisa, Lorenza D’Elia, and Jonas Ingmanns. “Stochastic Homogenization
    of Micromagnetic Energies and Emergence of Magnetic Skyrmions.” <i>Journal of
    Nonlinear Science</i>. Springer Nature, 2024. <a href="https://doi.org/10.1007/s00332-023-10005-3">https://doi.org/10.1007/s00332-023-10005-3</a>.
  ieee: E. Davoli, L. D’Elia, and J. Ingmanns, “Stochastic homogenization of micromagnetic
    energies and emergence of magnetic skyrmions,” <i>Journal of Nonlinear Science</i>,
    vol. 34, no. 2. Springer Nature, 2024.
  ista: Davoli E, D’Elia L, Ingmanns J. 2024. Stochastic homogenization of micromagnetic
    energies and emergence of magnetic skyrmions. Journal of Nonlinear Science. 34(2),
    30.
  mla: Davoli, Elisa, et al. “Stochastic Homogenization of Micromagnetic Energies
    and Emergence of Magnetic Skyrmions.” <i>Journal of Nonlinear Science</i>, vol.
    34, no. 2, 30, Springer Nature, 2024, doi:<a href="https://doi.org/10.1007/s00332-023-10005-3">10.1007/s00332-023-10005-3</a>.
  short: E. Davoli, L. D’Elia, J. Ingmanns, Journal of Nonlinear Science 34 (2024).
das_tickbox: '1'
dataavailabilitystatement: Data sharing is not applicable to this article as no datasets
  were generated or analyzed during the current study.
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-23T00:00:00Z
date_updated: 2026-10-15T09:46:00Z
day: '23'
department:
- _id: JuFi
doi: 10.1007/s00332-023-10005-3
external_id:
  arxiv:
  - '2306.05151'
  isi:
  - '001147480200001'
fulldoi: https://doi.org/10.1007/s00332-023-10005-3
intvolume: '        34'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2306.05151
month: '01'
oa: 1
oa_version: Preprint
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: Journal of Nonlinear Science
publication_identifier:
  eissn:
  - 1432-1467
  issn:
  - 0938-8974
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: not applicable
scopus_import: '1'
status: public
supplementarymaterial: no
title: Stochastic homogenization of micromagnetic energies and emergence of magnetic
  skyrmions
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2024'
...
---
OA_place: publisher
OA_type: free access
_id: '19005'
abstract:
- lang: eng
  text: "Causal representation learning promises to extend causal models to hidden
    causal\r\nvariables from raw entangled measurements. However, most progress has
    focused\r\non proving identifiability results in different settings, and we are
    not aware of any\r\nsuccessful real-world application. At the same time, the field
    of dynamical systems\r\nbenefited from deep learning and scaled to countless applications
    but does not allow\r\nparameter identification. In this paper, we draw a clear
    connection between the two\r\nand their key assumptions, allowing us to apply
    identifiable methods developed\r\nin causal representation learning to dynamical
    systems. At the same time, we can\r\nleverage scalable differentiable solvers
    developed for differential equations to build\r\nmodels that are both identifiable
    and practical. Overall, we learn explicitly controllable models that isolate the
    trajectory-specific parameters for further downstream\r\ntasks such as out-of-distribution
    classification or treatment effect estimation. We\r\nexperiment with a wind simulator
    with partially known factors of variation. We\r\nalso apply the resulting model
    to real-world climate data and successfully answer\r\ndownstream causal questions
    in line with existing literature on climate change.\r\nCode is available at https://github.com/CausalLearningAI/crl-dynamical-systems."
acknowledgement: "We thank Niklas Boers for recommending the SpeedyWeather simulator
  and Valentino Maiorca\r\nfor guidance on Fourier transformation for SST data. We
  are also grateful to Shimeng Huang and Riccardo Cadei for their feedback on the
  treatment effect estimation experiment and to Jiale Chen and Adeel Pervez for their
  assistance with the solver implementation. Finally, we appreciate the anonymous
  reviewers for their insightful suggestions, which helped improve the manuscript. "
alternative_title:
- Advances in Neural Information Processing Systems
article_processing_charge: No
arxiv: 1
author:
- first_name: Dingling
  full_name: Yao, Dingling
  id: d3e02e50-48a8-11ee-8f62-c108061797fa
  last_name: Yao
- first_name: Caroline J
  full_name: Muller, Caroline J
  id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
  last_name: Muller
  orcid: 0000-0001-5836-5350
- first_name: Francesco
  full_name: Locatello, Francesco
  id: 26cfd52f-2483-11ee-8040-88983bcc06d4
  last_name: Locatello
  orcid: 0000-0002-4850-0683
citation:
  ama: 'Yao D, Muller CJ, Locatello F. Marrying causal representation learning with
    dynamical systems for science. In: <i>38th Conference on Neural Information Processing
    Systems</i>. Vol 37. Neural Information Processing Systems Foundation; 2024. doi:<a
    href="https://doi.org/10.52202/079017-2290">10.52202/079017-2290</a>'
  apa: 'Yao, D., Muller, C. J., &#38; Locatello, F. (2024). Marrying causal representation
    learning with dynamical systems for science. In <i>38th Conference on Neural Information
    Processing Systems</i> (Vol. 37). Vancouver, Canada: Neural Information Processing
    Systems Foundation. <a href="https://doi.org/10.52202/079017-2290">https://doi.org/10.52202/079017-2290</a>'
  chicago: Yao, Dingling, Caroline J Muller, and Francesco Locatello. “Marrying Causal
    Representation Learning with Dynamical Systems for Science.” In <i>38th Conference
    on Neural Information Processing Systems</i>, Vol. 37. Neural Information Processing
    Systems Foundation, 2024. <a href="https://doi.org/10.52202/079017-2290">https://doi.org/10.52202/079017-2290</a>.
  ieee: D. Yao, C. J. Muller, and F. Locatello, “Marrying causal representation learning
    with dynamical systems for science,” in <i>38th Conference on Neural Information
    Processing Systems</i>, Vancouver, Canada, 2024, vol. 37.
  ista: 'Yao D, Muller CJ, Locatello F. 2024. Marrying causal representation learning
    with dynamical systems for science. 38th Conference on Neural Information Processing
    Systems. NeurIPS: Neural Information Processing Systems, Advances in Neural Information
    Processing Systems, vol. 37.'
  mla: Yao, Dingling, et al. “Marrying Causal Representation Learning with Dynamical
    Systems for Science.” <i>38th Conference on Neural Information Processing Systems</i>,
    vol. 37, Neural Information Processing Systems Foundation, 2024, doi:<a href="https://doi.org/10.52202/079017-2290">10.52202/079017-2290</a>.
  short: D. Yao, C.J. Muller, F. Locatello, in:, 38th Conference on Neural Information
    Processing Systems, Neural Information Processing Systems Foundation, 2024.
conference:
  end_date: 2024-12-16
  location: Vancouver, Canada
  name: 'NeurIPS: Neural Information Processing Systems'
  start_date: 2024-12-16
corr_author: '1'
das_tickbox: '0'
date_created: 2025-02-05T07:49:00Z
date_published: 2024-12-01T00:00:00Z
date_updated: 2026-10-15T09:47:17Z
day: '01'
ddc:
- '000'
- '550'
department:
- _id: CaMu
- _id: FrLo
doi: 10.52202/079017-2290
external_id:
  arxiv:
  - '2405.13888'
file:
- access_level: open_access
  checksum: fe8832367e7143876f178244385d859e
  content_type: application/pdf
  creator: dernst
  date_created: 2025-02-05T07:44:58Z
  date_updated: 2025-02-05T07:44:58Z
  file_id: '19006'
  file_name: 2024_NeurIPS_Yao.pdf
  file_size: 2595855
  relation: main_file
  success: 1
file_date_updated: 2025-02-05T07:44:58Z
fulldoi: https://doi.org/10.52202/079017-2290
has_accepted_license: '1'
intvolume: '        37'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
publication: 38th Conference on Neural Information Processing Systems
publication_identifier:
  eissn:
  - 1049-5258
publication_status: published
publisher: Neural Information Processing Systems Foundation
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/CausalLearningAI/crl-dynamical-systems
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Marrying causal representation learning with dynamical systems for science
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '13129'
abstract:
- lang: eng
  text: "We study the representative volume element (RVE) method, which is a method
    to approximately infer the effective behavior ahom of a stationary random medium.
    The latter is described by a coefficient field a(x) generated from a given ensemble
    ⟨⋅⟩ and the corresponding linear elliptic operator −∇⋅a∇. In line with the theory
    of homogenization, the method proceeds by computing d=3 correctors (d denoting
    the space dimension). To be numerically tractable, this computation has to be
    done on a finite domain: the so-called representative volume element, i.e., a
    large box with, say, periodic boundary conditions. The main message of this article
    is: Periodize the ensemble instead of its realizations. By this, we mean that
    it is better to sample from a suitably periodized ensemble than to periodically
    extend the restriction of a realization a(x) from the whole-space ensemble ⟨⋅⟩.
    We make this point by investigating the bias (or systematic error), i.e., the
    difference between ahom and the expected value of the RVE method, in terms of
    its scaling w.r.t. the lateral size L of the box. In case of periodizing a(x),
    we heuristically argue that this error is generically O(L−1). In case of a suitable
    periodization of ⟨⋅⟩\r\n, we rigorously show that it is O(L−d). In fact, we give
    a characterization of the leading-order error term for both strategies and argue
    that even in the isotropic case it is generically non-degenerate. We carry out
    the rigorous analysis in the convenient setting of ensembles ⟨⋅⟩\r\n of Gaussian
    type, which allow for a straightforward periodization, passing via the (integrable)
    covariance function. This setting has also the advantage of making the Price theorem
    and the Malliavin calculus available for optimal stochastic estimates of correctors.
    We actually need control of second-order correctors to capture the leading-order
    error term. This is due to inversion symmetry when applying the two-scale expansion
    to the Green function. As a bonus, we present a stream-lined strategy to estimate
    the error in a higher-order two-scale expansion of the Green function."
acknowledgement: Open access funding provided by Institute of Science and Technology
  (IST Austria).
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Nicolas
  full_name: Clozeau, Nicolas
  id: fea1b376-906f-11eb-847d-b2c0cf46455b
  last_name: Clozeau
- first_name: Marc
  full_name: Josien, Marc
  last_name: Josien
- first_name: Felix
  full_name: Otto, Felix
  last_name: Otto
- first_name: Qiang
  full_name: Xu, Qiang
  last_name: Xu
citation:
  ama: 'Clozeau N, Josien M, Otto F, Xu Q. Bias in the representative volume element
    method: Periodize the ensemble instead of its realizations. <i>Foundations of
    Computational Mathematics</i>. 2024;24:1305-1387. doi:<a href="https://doi.org/10.1007/s10208-023-09613-y">10.1007/s10208-023-09613-y</a>'
  apa: 'Clozeau, N., Josien, M., Otto, F., &#38; Xu, Q. (2024). Bias in the representative
    volume element method: Periodize the ensemble instead of its realizations. <i>Foundations
    of Computational Mathematics</i>. Springer Nature. <a href="https://doi.org/10.1007/s10208-023-09613-y">https://doi.org/10.1007/s10208-023-09613-y</a>'
  chicago: 'Clozeau, Nicolas, Marc Josien, Felix Otto, and Qiang Xu. “Bias in the
    Representative Volume Element Method: Periodize the Ensemble Instead of Its Realizations.”
    <i>Foundations of Computational Mathematics</i>. Springer Nature, 2024. <a href="https://doi.org/10.1007/s10208-023-09613-y">https://doi.org/10.1007/s10208-023-09613-y</a>.'
  ieee: 'N. Clozeau, M. Josien, F. Otto, and Q. Xu, “Bias in the representative volume
    element method: Periodize the ensemble instead of its realizations,” <i>Foundations
    of Computational Mathematics</i>, vol. 24. Springer Nature, pp. 1305–1387, 2024.'
  ista: 'Clozeau N, Josien M, Otto F, Xu Q. 2024. Bias in the representative volume
    element method: Periodize the ensemble instead of its realizations. Foundations
    of Computational Mathematics. 24, 1305–1387.'
  mla: 'Clozeau, Nicolas, et al. “Bias in the Representative Volume Element Method:
    Periodize the Ensemble Instead of Its Realizations.” <i>Foundations of Computational
    Mathematics</i>, vol. 24, Springer Nature, 2024, pp. 1305–87, doi:<a href="https://doi.org/10.1007/s10208-023-09613-y">10.1007/s10208-023-09613-y</a>.'
  short: N. Clozeau, M. Josien, F. Otto, Q. Xu, Foundations of Computational Mathematics
    24 (2024) 1305–1387.
corr_author: '1'
das_tickbox: '0'
date_created: 2023-06-11T22:00:40Z
date_published: 2024-08-01T00:00:00Z
date_updated: 2026-10-15T09:47:37Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s10208-023-09613-y
external_id:
  isi:
  - '000999623100001'
file:
- access_level: open_access
  checksum: ec0582e2b55e2703a7da2686ae0d682e
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-09T07:36:57Z
  date_updated: 2025-01-09T07:36:57Z
  file_id: '18782'
  file_name: 2024_FoundCompMath_Clozeau.pdf
  file_size: 1454406
  relation: main_file
  success: 1
file_date_updated: 2025-01-09T07:36:57Z
fulldoi: https://doi.org/10.1007/s10208-023-09613-y
has_accepted_license: '1'
intvolume: '        24'
isi: 1
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 1305-1387
publication: Foundations of Computational Mathematics
publication_identifier:
  eissn:
  - 1615-3383
  issn:
  - 1615-3375
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: 'Bias in the representative volume element method: Periodize the ensemble instead
  of its realizations'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 24
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '12486'
abstract:
- lang: eng
  text: This paper is concerned with the problem of regularization by noise of systems
    of reaction–diffusion equations with mass control. It is known that strong solutions
    to such systems of PDEs may blow-up in finite time. Moreover, for many systems
    of practical interest, establishing whether the blow-up occurs or not is an open
    question. Here we prove that a suitable multiplicative noise of transport type
    has a regularizing effect. More precisely, for both a sufficiently noise intensity
    and a high spectrum, the blow-up of strong solutions is delayed up to an arbitrary
    large time. Global existence is shown for the case of exponentially decreasing
    mass. The proofs combine and extend recent developments in regularization by noise
    and in the Lp(Lq)-approach to stochastic PDEs, highlighting new connections between
    the two areas.
acknowledgement: "The author has received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (Grant Agreement No. 948819).\r\nThe author thanks Lorenzo Dello Schiavo, Lucio
  Galeati and Mark Veraar for helpful comments. The author acknowledges Caterina Balzotti
  for her support in creating the picture. The author\r\nthanks the anonymous referee
  for helpful comments. "
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
citation:
  ama: 'Agresti A. Delayed blow-up and enhanced diffusion by transport noise for systems
    of reaction-diffusion equations. <i>Stochastics and Partial Differential Equations:
    Analysis and Computations</i>. 2024;12:1907-1981. doi:<a href="https://doi.org/10.1007/s40072-023-00319-4">10.1007/s40072-023-00319-4</a>'
  apa: 'Agresti, A. (2024). Delayed blow-up and enhanced diffusion by transport noise
    for systems of reaction-diffusion equations. <i>Stochastics and Partial Differential
    Equations: Analysis and Computations</i>. Springer Nature. <a href="https://doi.org/10.1007/s40072-023-00319-4">https://doi.org/10.1007/s40072-023-00319-4</a>'
  chicago: 'Agresti, Antonio. “Delayed Blow-up and Enhanced Diffusion by Transport
    Noise for Systems of Reaction-Diffusion Equations.” <i>Stochastics and Partial
    Differential Equations: Analysis and Computations</i>. Springer Nature, 2024.
    <a href="https://doi.org/10.1007/s40072-023-00319-4">https://doi.org/10.1007/s40072-023-00319-4</a>.'
  ieee: 'A. Agresti, “Delayed blow-up and enhanced diffusion by transport noise for
    systems of reaction-diffusion equations,” <i>Stochastics and Partial Differential
    Equations: Analysis and Computations</i>, vol. 12. Springer Nature, pp. 1907–1981,
    2024.'
  ista: 'Agresti A. 2024. Delayed blow-up and enhanced diffusion by transport noise
    for systems of reaction-diffusion equations. Stochastics and Partial Differential
    Equations: Analysis and Computations. 12, 1907–1981.'
  mla: 'Agresti, Antonio. “Delayed Blow-up and Enhanced Diffusion by Transport Noise
    for Systems of Reaction-Diffusion Equations.” <i>Stochastics and Partial Differential
    Equations: Analysis and Computations</i>, vol. 12, Springer Nature, 2024, pp.
    1907–81, doi:<a href="https://doi.org/10.1007/s40072-023-00319-4">10.1007/s40072-023-00319-4</a>.'
  short: 'A. Agresti, Stochastics and Partial Differential Equations: Analysis and
    Computations 12 (2024) 1907–1981.'
corr_author: '1'
das_tickbox: '1'
dataavailabilitystatement: This manuscript has no associated data.
date_created: 2023-02-02T10:45:47Z
date_published: 2024-09-01T00:00:00Z
date_updated: 2026-10-15T09:48:09Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s40072-023-00319-4
ec_funded: 1
external_id:
  arxiv:
  - '2207.08293'
  isi:
  - '001108594600001'
  pmid:
  - '39104877'
file:
- access_level: open_access
  checksum: 3c93d07a5f7e0b0caa8062eadcfa69c2
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-09T08:01:02Z
  date_updated: 2025-01-09T08:01:02Z
  file_id: '18787'
  file_name: 2024_StochPartDiffEquations_Agresti.pdf
  file_size: 1320682
  relation: main_file
  success: 1
file_date_updated: 2025-01-09T08:01:02Z
fulldoi: https://doi.org/10.1007/s40072-023-00319-4
has_accepted_license: '1'
intvolume: '        12'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 1907-1981
pmid: 1
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: 'Stochastics and Partial Differential Equations: Analysis and Computations'
publication_identifier:
  eissn:
  - 2194-041X
  issn:
  - 2194-0401
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: not applicable
scopus_import: '1'
status: public
supplementarymaterial: no
title: Delayed blow-up and enhanced diffusion by transport noise for systems of reaction-diffusion
  equations
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 12
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '14797'
abstract:
- lang: eng
  text: We study a random matching problem on closed compact  2 -dimensional Riemannian
    manifolds (with respect to the squared Riemannian distance), with samples of random
    points whose common law is absolutely continuous with respect to the volume measure
    with strictly positive and bounded density. We show that given two sequences of
    numbers  n  and  m=m(n)  of points, asymptotically equivalent as  n  goes to infinity,
    the optimal transport plan between the two empirical measures  μn  and  νm  is
    quantitatively well-approximated by  (Id,exp(∇hn))#μn  where  hn  solves a linear
    elliptic PDE obtained by a regularized first-order linearization of the Monge-Ampère
    equation. This is obtained in the case of samples of correlated random points
    for which a stretched exponential decay of the  α -mixing coefficient holds and
    for a class of discrete-time Markov chains having a unique absolutely continuous
    invariant measure with respect to the volume measure.
acknowledgement: "NC has received funding from the European Research Council (ERC)
  under the European Union’s Horizon 2020 research and innovation programme (Grant
  agreement No 948819).\r\nFM is supported by the Deutsche Forschungsgemeinschaft
  (DFG, German Research Foundation) through the SPP 2265 Random Geometric Systems.
  FM has been funded by the Deutsche Forschungsgemeinschaft (DFG, German Research
  Foundation) under Germany’s Excellence Strategy EXC 2044 -390685587, Mathematics
  Münster: Dynamics–Geometry–Structure. FM has been funded by the Max Planck Institute
  for Mathematics in the Sciences."
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Nicolas
  full_name: Clozeau, Nicolas
  id: fea1b376-906f-11eb-847d-b2c0cf46455b
  last_name: Clozeau
- first_name: Francesco
  full_name: Mattesini, Francesco
  last_name: Mattesini
citation:
  ama: Clozeau N, Mattesini F. Annealed quantitative estimates for the quadratic 2D-discrete
    random matching problem. <i>Probability Theory and Related Fields</i>. 2024;190:485-541.
    doi:<a href="https://doi.org/10.1007/s00440-023-01254-0">10.1007/s00440-023-01254-0</a>
  apa: Clozeau, N., &#38; Mattesini, F. (2024). Annealed quantitative estimates for
    the quadratic 2D-discrete random matching problem. <i>Probability Theory and Related
    Fields</i>. Springer Nature. <a href="https://doi.org/10.1007/s00440-023-01254-0">https://doi.org/10.1007/s00440-023-01254-0</a>
  chicago: Clozeau, Nicolas, and Francesco Mattesini. “Annealed Quantitative Estimates
    for the Quadratic 2D-Discrete Random Matching Problem.” <i>Probability Theory
    and Related Fields</i>. Springer Nature, 2024. <a href="https://doi.org/10.1007/s00440-023-01254-0">https://doi.org/10.1007/s00440-023-01254-0</a>.
  ieee: N. Clozeau and F. Mattesini, “Annealed quantitative estimates for the quadratic
    2D-discrete random matching problem,” <i>Probability Theory and Related Fields</i>,
    vol. 190. Springer Nature, pp. 485–541, 2024.
  ista: Clozeau N, Mattesini F. 2024. Annealed quantitative estimates for the quadratic
    2D-discrete random matching problem. Probability Theory and Related Fields. 190,
    485–541.
  mla: Clozeau, Nicolas, and Francesco Mattesini. “Annealed Quantitative Estimates
    for the Quadratic 2D-Discrete Random Matching Problem.” <i>Probability Theory
    and Related Fields</i>, vol. 190, Springer Nature, 2024, pp. 485–541, doi:<a href="https://doi.org/10.1007/s00440-023-01254-0">10.1007/s00440-023-01254-0</a>.
  short: N. Clozeau, F. Mattesini, Probability Theory and Related Fields 190 (2024)
    485–541.
corr_author: '1'
das_tickbox: '0'
date_created: 2024-01-14T23:00:57Z
date_published: 2024-10-01T00:00:00Z
date_updated: 2026-10-15T09:48:31Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s00440-023-01254-0
ec_funded: 1
external_id:
  arxiv:
  - '2303.00353'
  isi:
  - '001136206200002'
file:
- access_level: open_access
  checksum: 34f44cad6a210ff66791ee37e590af2c
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-09T08:10:54Z
  date_updated: 2025-01-09T08:10:54Z
  file_id: '18788'
  file_name: 2024_ProbTheoryRelatFields_Clozeau.pdf
  file_size: 880117
  relation: main_file
  success: 1
file_date_updated: 2025-01-09T08:10:54Z
fulldoi: https://doi.org/10.1007/s00440-023-01254-0
has_accepted_license: '1'
intvolume: '       190'
isi: 1
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 485-541
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: Probability Theory and Related Fields
publication_identifier:
  eissn:
  - 1432-2064
  issn:
  - 0178-8051
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Annealed quantitative estimates for the quadratic 2D-discrete random matching
  problem
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 190
year: '2024'
...
---
_id: '15334'
abstract:
- lang: eng
  text: We consider the sharp interface limit of a Navier-Stokes/Allen Cahn equation
    in a bounded smooth domain in two space dimensions, in the case of vanishing mobility
    mε=ε√, where the small parameter ε>0 related to the thickness of the diffuse interface
    is sent to zero. For well-prepared initial data and sufficiently small times,
    we rigorously prove convergence to the classical two-phase Navier-Stokes system
    with surface tension. The idea of the proof is to use asymptotic expansions to
    construct an approximate solution and to estimate the difference of the exact
    and approximate solutions with a spectral estimate for the (at the approximate
    solution) linearized Allen-Cahn operator. In the calculations we use a fractional
    order ansatz and new ansatz terms in higher orders leading to a suitable ε-scaled
    and coupled model problem. Moreover, we apply the novel idea of introducing ε-dependent
    coordinates.
acknowledgement: "Open Access funding enabled and organized by Projekt DEAL.\r\nM.
  Fei was partially supported by NSF of China under Grant No. 12271004 and Anhui Provincial
  Funding Project under Grant Nos. gxbjZD2022009 and 2308085J10. Moreover, M. Moser
  has received funding from the European Research Council (ERC) under the European
  Union’s Horizon 2020 research and innovation programme (Grant Agreement No 948819)."
article_number: '94'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Helmut
  full_name: Abels, Helmut
  last_name: Abels
- first_name: Mingwen
  full_name: Fei, Mingwen
  last_name: Fei
- first_name: Maximilian
  full_name: Moser, Maximilian
  id: a60047a9-da77-11eb-85b4-c4dc385ebb8c
  last_name: Moser
citation:
  ama: Abels H, Fei M, Moser M. Sharp interface limit for a Navier–Stokes/Allen–Cahn
    system in the case of a vanishing mobility. <i>Calculus of Variations and Partial
    Differential Equations</i>. 2024;63(4). doi:<a href="https://doi.org/10.1007/s00526-024-02715-7">10.1007/s00526-024-02715-7</a>
  apa: Abels, H., Fei, M., &#38; Moser, M. (2024). Sharp interface limit for a Navier–Stokes/Allen–Cahn
    system in the case of a vanishing mobility. <i>Calculus of Variations and Partial
    Differential Equations</i>. Springer Nature. <a href="https://doi.org/10.1007/s00526-024-02715-7">https://doi.org/10.1007/s00526-024-02715-7</a>
  chicago: Abels, Helmut, Mingwen Fei, and Maximilian Moser. “Sharp Interface Limit
    for a Navier–Stokes/Allen–Cahn System in the Case of a Vanishing Mobility.” <i>Calculus
    of Variations and Partial Differential Equations</i>. Springer Nature, 2024. <a
    href="https://doi.org/10.1007/s00526-024-02715-7">https://doi.org/10.1007/s00526-024-02715-7</a>.
  ieee: H. Abels, M. Fei, and M. Moser, “Sharp interface limit for a Navier–Stokes/Allen–Cahn
    system in the case of a vanishing mobility,” <i>Calculus of Variations and Partial
    Differential Equations</i>, vol. 63, no. 4. Springer Nature, 2024.
  ista: Abels H, Fei M, Moser M. 2024. Sharp interface limit for a Navier–Stokes/Allen–Cahn
    system in the case of a vanishing mobility. Calculus of Variations and Partial
    Differential Equations. 63(4), 94.
  mla: Abels, Helmut, et al. “Sharp Interface Limit for a Navier–Stokes/Allen–Cahn
    System in the Case of a Vanishing Mobility.” <i>Calculus of Variations and Partial
    Differential Equations</i>, vol. 63, no. 4, 94, Springer Nature, 2024, doi:<a
    href="https://doi.org/10.1007/s00526-024-02715-7">10.1007/s00526-024-02715-7</a>.
  short: H. Abels, M. Fei, M. Moser, Calculus of Variations and Partial Differential
    Equations 63 (2024).
das_tickbox: '0'
date_created: 2024-04-21T22:00:52Z
date_published: 2024-05-01T00:00:00Z
date_updated: 2026-10-15T09:47:15Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s00526-024-02715-7
ec_funded: 1
external_id:
  arxiv:
  - '2304.12096'
  isi:
  - '001199418100002'
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  file_size: 975186
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  success: 1
file_date_updated: 2024-04-23T07:30:48Z
fulldoi: https://doi.org/10.1007/s00526-024-02715-7
has_accepted_license: '1'
intvolume: '        63'
isi: 1
issue: '4'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: Calculus of Variations and Partial Differential Equations
publication_identifier:
  eissn:
  - 1432-0835
  issn:
  - 0944-2669
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Sharp interface limit for a Navier–Stokes/Allen–Cahn system in the case of
  a vanishing mobility
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 63
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19007'
abstract:
- lang: eng
  text: "Learning modular object-centric representations is crucial for systematic
    generalization. Existing methods show promising object-binding capabilities empirically,\r\nbut
    theoretical identifiability guarantees remain relatively underdeveloped. Understanding
    when object-centric representations can theoretically be identified is\r\ncrucial
    for scaling slot-based methods to high-dimensional images with correctness\r\nguarantees.
    To that end, we propose a probabilistic slot-attention algorithm that\r\nimposes
    an aggregate mixture prior over object-centric slot representations, thereby\r\nproviding
    slot identifiability guarantees without supervision, up to an equivalence\r\nrelation.
    We provide empirical verification of our theoretical identifiability result\r\nusing
    both simple 2-dimensional data and high-resolution imaging datasets.\r\n"
acknowledgement: A. Kori is supported by UKRI (grant number EP/S023356/1), as part
  of the UKRI Centre for Doctoral Training in Safe and Trusted AI. B. Glocker and
  F.D.S. Ribeiro acknowledge the support of the UKRI AI programme, and the Engineering
  and Physical Sciences Research Council, for CHAI - EPSRC Causality in Healthcare
  AI Hub (grant number EP/Y028856/1).
alternative_title:
- Advances in Neural Information Processing Systems
article_processing_charge: No
arxiv: 1
author:
- first_name: Avinash
  full_name: Kori, Avinash
  last_name: Kori
- first_name: Francesco
  full_name: Locatello, Francesco
  id: 26cfd52f-2483-11ee-8040-88983bcc06d4
  last_name: Locatello
  orcid: 0000-0002-4850-0683
- first_name: Ainkaran
  full_name: Santhirasekaram, Ainkaran
  last_name: Santhirasekaram
- first_name: Francesca
  full_name: Toni, Francesca
  last_name: Toni
- first_name: Ben
  full_name: Glocker, Ben
  last_name: Glocker
- first_name: Fabio
  full_name: De Sousa Ribeiro, Fabio
  last_name: De Sousa Ribeiro
citation:
  ama: 'Kori A, Locatello F, Santhirasekaram A, Toni F, Glocker B, De Sousa Ribeiro
    F. Identifiable object-centric representation learning via probabilistic slot
    attention. In: <i>38th Conference on Neural Information Processing Systems</i>.
    Vol 37. Neural Information Processing Systems Foundation; 2024. doi:<a href="https://doi.org/10.52202/079017-2960">10.52202/079017-2960</a>'
  apa: 'Kori, A., Locatello, F., Santhirasekaram, A., Toni, F., Glocker, B., &#38;
    De Sousa Ribeiro, F. (2024). Identifiable object-centric representation learning
    via probabilistic slot attention. In <i>38th Conference on Neural Information
    Processing Systems</i> (Vol. 37). Vancouver, Canada: Neural Information Processing
    Systems Foundation. <a href="https://doi.org/10.52202/079017-2960">https://doi.org/10.52202/079017-2960</a>'
  chicago: Kori, Avinash, Francesco Locatello, Ainkaran Santhirasekaram, Francesca
    Toni, Ben Glocker, and Fabio De Sousa Ribeiro. “Identifiable Object-Centric Representation
    Learning via Probabilistic Slot Attention.” In <i>38th Conference on Neural Information
    Processing Systems</i>, Vol. 37. Neural Information Processing Systems Foundation,
    2024. <a href="https://doi.org/10.52202/079017-2960">https://doi.org/10.52202/079017-2960</a>.
  ieee: A. Kori, F. Locatello, A. Santhirasekaram, F. Toni, B. Glocker, and F. De
    Sousa Ribeiro, “Identifiable object-centric representation learning via probabilistic
    slot attention,” in <i>38th Conference on Neural Information Processing Systems</i>,
    Vancouver, Canada, 2024, vol. 37.
  ista: 'Kori A, Locatello F, Santhirasekaram A, Toni F, Glocker B, De Sousa Ribeiro
    F. 2024. Identifiable object-centric representation learning via probabilistic
    slot attention. 38th Conference on Neural Information Processing Systems. NeurIPS:
    Neural Information Processing Systems, Advances in Neural Information Processing
    Systems, vol. 37.'
  mla: Kori, Avinash, et al. “Identifiable Object-Centric Representation Learning
    via Probabilistic Slot Attention.” <i>38th Conference on Neural Information Processing
    Systems</i>, vol. 37, Neural Information Processing Systems Foundation, 2024,
    doi:<a href="https://doi.org/10.52202/079017-2960">10.52202/079017-2960</a>.
  short: A. Kori, F. Locatello, A. Santhirasekaram, F. Toni, B. Glocker, F. De Sousa
    Ribeiro, in:, 38th Conference on Neural Information Processing Systems, Neural
    Information Processing Systems Foundation, 2024.
conference:
  end_date: 2024-12-16
  location: Vancouver, Canada
  name: 'NeurIPS: Neural Information Processing Systems'
  start_date: 2024-12-16
das_tickbox: '0'
date_created: 2025-02-05T08:36:22Z
date_published: 2024-12-01T00:00:00Z
date_updated: 2026-10-15T09:48:32Z
day: '01'
ddc:
- '000'
department:
- _id: FrLo
doi: 10.52202/079017-2960
external_id:
  arxiv:
  - '2406.07141'
file:
- access_level: open_access
  checksum: d27b3c7102adc28e798fe41001f0b919
  content_type: application/pdf
  creator: dernst
  date_created: 2025-02-05T08:34:25Z
  date_updated: 2025-02-05T08:34:25Z
  file_id: '19008'
  file_name: 2024_NeurIPS_Kori.pdf
  file_size: 6943800
  relation: main_file
  success: 1
file_date_updated: 2025-02-05T08:34:25Z
fulldoi: https://doi.org/10.52202/079017-2960
has_accepted_license: '1'
intvolume: '        37'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
publication: 38th Conference on Neural Information Processing Systems
publication_status: published
publisher: Neural Information Processing Systems Foundation
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Identifiable object-centric representation learning via probabilistic slot
  attention
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '15098'
abstract:
- lang: eng
  text: The paper is devoted to the analysis of the global well-posedness and the
    interior regularity of the 2D Navier–Stokes equations with inhomogeneous stochastic
    boundary conditions. The noise, white in time and coloured in space, can be interpreted
    as the physical law describing the driving mechanism on the atmosphere–ocean interface,
    i.e. as a balance of the shear stress of the ocean and the horizontal wind force.
acknowledgement: The authors thank Professor Franco Flandoli for useful discussions
  and valuable insight into the subject. In particular, A.A. would like to thank professor
  Franco Flandoli for hosting and financially contributing to his research visit at
  Scuola Normale di Pisa in January 2023, where this work started. E.L. would like
  to express sincere gratitude to Professor Marco Fuhrman for igniting his interest
  in this particular field of research. E.L. want to thank Professor Matthias Hieber
  and Dr. Martin Saal for useful discussions. Finally, the authors thank the anonymous
  referee for helpful comments which improved the paper from its initial version.Open
  access funding provided by Scuola Normale Superiore within the CRUI-CARE Agreement.
  A. Agresti has received funding from the European Research Council (ERC) under the
  European Union’s Horizon 2020 research and innovation programme (Grant Agreement
  No. 948819).
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
- first_name: Eliseo
  full_name: Luongo, Eliseo
  last_name: Luongo
citation:
  ama: Agresti A, Luongo E. Global well-posedness and interior regularity of 2D Navier-Stokes
    equations with stochastic boundary conditions. <i>Mathematische Annalen</i>. 2024;390:2727-2766.
    doi:<a href="https://doi.org/10.1007/s00208-024-02812-0">10.1007/s00208-024-02812-0</a>
  apa: Agresti, A., &#38; Luongo, E. (2024). Global well-posedness and interior regularity
    of 2D Navier-Stokes equations with stochastic boundary conditions. <i>Mathematische
    Annalen</i>. Springer Nature. <a href="https://doi.org/10.1007/s00208-024-02812-0">https://doi.org/10.1007/s00208-024-02812-0</a>
  chicago: Agresti, Antonio, and Eliseo Luongo. “Global Well-Posedness and Interior
    Regularity of 2D Navier-Stokes Equations with Stochastic Boundary Conditions.”
    <i>Mathematische Annalen</i>. Springer Nature, 2024. <a href="https://doi.org/10.1007/s00208-024-02812-0">https://doi.org/10.1007/s00208-024-02812-0</a>.
  ieee: A. Agresti and E. Luongo, “Global well-posedness and interior regularity of
    2D Navier-Stokes equations with stochastic boundary conditions,” <i>Mathematische
    Annalen</i>, vol. 390. Springer Nature, pp. 2727–2766, 2024.
  ista: Agresti A, Luongo E. 2024. Global well-posedness and interior regularity of
    2D Navier-Stokes equations with stochastic boundary conditions. Mathematische
    Annalen. 390, 2727–2766.
  mla: Agresti, Antonio, and Eliseo Luongo. “Global Well-Posedness and Interior Regularity
    of 2D Navier-Stokes Equations with Stochastic Boundary Conditions.” <i>Mathematische
    Annalen</i>, vol. 390, Springer Nature, 2024, pp. 2727–66, doi:<a href="https://doi.org/10.1007/s00208-024-02812-0">10.1007/s00208-024-02812-0</a>.
  short: A. Agresti, E. Luongo, Mathematische Annalen 390 (2024) 2727–2766.
das_tickbox: '1'
dataavailabilitystatement: Data sharing not applicable to this article as no data
  sets were generated or analyzed during the current study.
date_created: 2024-03-10T23:00:54Z
date_published: 2024-10-01T00:00:00Z
date_updated: 2026-10-15T09:48:57Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1007/s00208-024-02812-0
ec_funded: 1
external_id:
  arxiv:
  - '2306.11081'
  isi:
  - '001172711400002'
  pmid:
  - '39351582'
file:
- access_level: open_access
  checksum: d55cac8bddea09a97f06612825c4f229
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-09T08:23:36Z
  date_updated: 2025-01-09T08:23:36Z
  file_id: '18790'
  file_name: 2024_MathAnnalen_Agresti.pdf
  file_size: 661557
  relation: main_file
  success: 1
file_date_updated: 2025-01-09T08:23:36Z
fulldoi: https://doi.org/10.1007/s00208-024-02812-0
has_accepted_license: '1'
intvolume: '       390'
isi: 1
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 2727-2766
pmid: 1
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: Mathematische Annalen
publication_identifier:
  eissn:
  - 1432-1807
  issn:
  - 0025-5831
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: not applicable
scopus_import: '1'
status: public
supplementarymaterial: no
title: Global well-posedness and interior regularity of 2D Navier-Stokes equations
  with stochastic boundary conditions
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 390
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '17462'
abstract:
- lang: eng
  text: We are interested in numerical algorithms for computing the electrical field
    generated by a charge distribution localized on scale l in an infinite heterogeneous
    correlated random medium, in a situation where the medium is only known in a box
    of diameter L >>l around the support of the charge. We show that the algorithm
    in [J. Lu, F. Otto, and L. Wang, Optimal Artificial Boundary Conditions Based
    on Second-Order Correctors for Three Dimensional Random Ellilptic Media, preprint,
    arXiv:2109.01616, 2021], suggesting optimal Dirichlet boundary conditions motivated
    by the multipole expansion [P. Bella, A. Giunti, and F. Otto, Comm. Partial Differential
    Equations, 45 (2020), pp. 561–640], still performs well in correlated media. With
    overwhelming probability, we obtain a convergence rate in terms of l, L, and the
    size of the correlations for which optimality is supported with numerical simulations.
    These estimates are provided for ensembles which satisfy a multiscale logarithmic
    Sobolev inequality, where our main tool is an extension of the semigroup estimates
    in [N. Clozeau, Stoch. Partial Differ. Equ. Anal. Comput., 11 (2023), pp. 1254–1378].
    As part of our strategy, we construct sublinear second-order correctors in this
    correlated setting, which is of independent interest.
acknowledgement: We would like to thank our affiliations, Institute of Science and
  Technology Austria and Max Planck Institute for Mathematics in the Sciences, for
  supporting the authors’ visits to each other, which greatly facilitated this work.
  We would like to thank Marc Josien and Quinn Winters for assistance in numerical
  implementation.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Nicolas
  full_name: Clozeau, Nicolas
  id: fea1b376-906f-11eb-847d-b2c0cf46455b
  last_name: Clozeau
- first_name: Lihan
  full_name: Wang, Lihan
  last_name: Wang
citation:
  ama: Clozeau N, Wang L. Artificial boundary conditions for random elliptic systems
    with correlated coefficient field. <i>Multiscale Modeling and Simulation</i>.
    2024;22(3):973-1029. doi:<a href="https://doi.org/10.1137/23M1603819">10.1137/23M1603819</a>
  apa: Clozeau, N., &#38; Wang, L. (2024). Artificial boundary conditions for random
    elliptic systems with correlated coefficient field. <i>Multiscale Modeling and
    Simulation</i>. Society for Industrial and Applied Mathematics. <a href="https://doi.org/10.1137/23M1603819">https://doi.org/10.1137/23M1603819</a>
  chicago: Clozeau, Nicolas, and Lihan Wang. “Artificial Boundary Conditions for Random
    Elliptic Systems with Correlated Coefficient Field.” <i>Multiscale Modeling and
    Simulation</i>. Society for Industrial and Applied Mathematics, 2024. <a href="https://doi.org/10.1137/23M1603819">https://doi.org/10.1137/23M1603819</a>.
  ieee: N. Clozeau and L. Wang, “Artificial boundary conditions for random elliptic
    systems with correlated coefficient field,” <i>Multiscale Modeling and Simulation</i>,
    vol. 22, no. 3. Society for Industrial and Applied Mathematics, pp. 973–1029,
    2024.
  ista: Clozeau N, Wang L. 2024. Artificial boundary conditions for random elliptic
    systems with correlated coefficient field. Multiscale Modeling and Simulation.
    22(3), 973–1029.
  mla: Clozeau, Nicolas, and Lihan Wang. “Artificial Boundary Conditions for Random
    Elliptic Systems with Correlated Coefficient Field.” <i>Multiscale Modeling and
    Simulation</i>, vol. 22, no. 3, Society for Industrial and Applied Mathematics,
    2024, pp. 973–1029, doi:<a href="https://doi.org/10.1137/23M1603819">10.1137/23M1603819</a>.
  short: N. Clozeau, L. Wang, Multiscale Modeling and Simulation 22 (2024) 973–1029.
corr_author: '1'
das_tickbox: '0'
date_created: 2024-08-25T22:01:08Z
date_published: 2024-09-01T00:00:00Z
date_updated: 2026-10-15T09:49:19Z
day: '01'
department:
- _id: JuFi
doi: 10.1137/23M1603819
ec_funded: 1
external_id:
  arxiv:
  - '2309.06798'
  isi:
  - '001285416500001'
fulldoi: https://doi.org/10.1137/23M1603819
intvolume: '        22'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2309.06798
month: '09'
oa: 1
oa_version: Preprint
page: 973-1029
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: Multiscale Modeling and Simulation
publication_identifier:
  eissn:
  - 1540-3467
  issn:
  - 1540-3459
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Artificial boundary conditions for random elliptic systems with correlated
  coefficient field
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 22
year: '2024'
...
---
_id: '15119'
abstract:
- lang: eng
  text: In this paper we consider an SPDE where the leading term is a second order
    operator with periodic boundary conditions, coefficients which are measurable
    in  (t,ω) , and Hölder continuous in space. Assuming stochastic parabolicity conditions,
    we prove Lp((0,T)×Ω,tκdt;Hσ,q(Td)) -estimates. The main novelty is that we do
    not require  p=q . Moreover, we allow arbitrary  σ∈R  and weights in time. Such
    mixed regularity estimates play a crucial role in applications to nonlinear SPDEs
    which is clear from our previous work. To prove our main results we develop a
    general perturbation theory for SPDEs. Moreover, we prove a new result on pointwise
    multiplication in spaces with fractional smoothness.
acknowledgement: The first author has been partially supported by the Nachwuchsring
  – Network for the promotion of young scientists – at TU Kaiserslautern. The second
  author is supported by the VIDI subsidy 639.032.427 of the Netherlands Organisation
  for Scientific Research (NWO). The authors thank the anonymous referees and Max
  Sauerbrey for careful reading and helpful suggestions.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
- first_name: Mark
  full_name: Veraar, Mark
  last_name: Veraar
citation:
  ama: Agresti A, Veraar M. Stochastic maximal Lp(Lq)-regularity for second order
    systems with periodic boundary conditions. <i>Annales de l’Institut Henri Poincaré,
    Probabilités et Statistiques</i>. 2024;60(1):413-430. doi:<a href="https://doi.org/10.1214/22-AIHP1333">10.1214/22-AIHP1333</a>
  apa: Agresti, A., &#38; Veraar, M. (2024). Stochastic maximal Lp(Lq)-regularity
    for second order systems with periodic boundary conditions. <i>Annales de l’Institut
    Henri Poincaré, Probabilités et Statistiques</i>. Institute of Mathematical Statistics.
    <a href="https://doi.org/10.1214/22-AIHP1333">https://doi.org/10.1214/22-AIHP1333</a>
  chicago: Agresti, Antonio, and Mark Veraar. “Stochastic Maximal Lp(Lq)-Regularity
    for Second Order Systems with Periodic Boundary Conditions.” <i>Annales de l’Institut
    Henri Poincaré, Probabilités et Statistiques</i>. Institute of Mathematical Statistics,
    2024. <a href="https://doi.org/10.1214/22-AIHP1333">https://doi.org/10.1214/22-AIHP1333</a>.
  ieee: A. Agresti and M. Veraar, “Stochastic maximal Lp(Lq)-regularity for second
    order systems with periodic boundary conditions,” <i>Annales de l’Institut Henri
    Poincaré, Probabilités et Statistiques</i>, vol. 60, no. 1. Institute of Mathematical
    Statistics, pp. 413–430, 2024.
  ista: Agresti A, Veraar M. 2024. Stochastic maximal Lp(Lq)-regularity for second
    order systems with periodic boundary conditions. Annales de l’Institut Henri Poincaré,
    Probabilités et Statistiques. 60(1), 413–430.
  mla: Agresti, Antonio, and Mark Veraar. “Stochastic Maximal Lp(Lq)-Regularity for
    Second Order Systems with Periodic Boundary Conditions.” <i>Annales de l’Institut
    Henri Poincaré, Probabilités et Statistiques</i>, vol. 60, no. 1, Institute of
    Mathematical Statistics, 2024, pp. 413–30, doi:<a href="https://doi.org/10.1214/22-AIHP1333">10.1214/22-AIHP1333</a>.
  short: A. Agresti, M. Veraar, Annales de l’Institut Henri Poincaré, Probabilités
    et Statistiques 60 (2024) 413–430.
corr_author: '1'
das_tickbox: '0'
date_created: 2024-03-17T23:00:58Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2026-10-15T09:46:19Z
day: '01'
department:
- _id: JuFi
doi: 10.1214/22-AIHP1333
external_id:
  arxiv:
  - '2106.01274'
fulldoi: https://doi.org/10.1214/22-AIHP1333
intvolume: '        60'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2106.01274
month: '02'
oa: 1
oa_version: Preprint
page: 413-430
publication: Annales de l'Institut Henri Poincaré, Probabilités et Statistiques
publication_identifier:
  issn:
  - 0246-0203
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Stochastic maximal Lp(Lq)-regularity for second order systems with periodic
  boundary conditions
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 60
year: '2024'
...
---
_id: '17481'
abstract:
- lang: eng
  text: "Phase-field models such as the Allen–Cahn equation may give rise to the formation
    and evolution of geometric shapes, a phenomenon that may be analyzed rigorously
    in suitable scaling regimes. In its sharp-interface limit, the vectorial Allen–Cahn
    equation with a potential with N≥3 distinct minima has been conjectured to describe
    the evolution of branched interfaces by multiphase mean curvature flow. In the
    present work, we give a rigorous proof for this statement in two and three ambient
    dimensions and for a suitable class of potentials: as long as a strong solution
    to multiphase mean curvature flow exists, solutions to the vectorial Allen–Cahn
    equation with well-prepared initial data converge towards multiphase mean curvature
    flow in the limit of vanishing interface width parameter ε↘0. We even establish
    the rate of convergence O(ε \r\n1/2\r\n ). Our approach is based on the gradient-flow
    structure of the Allen–Cahn equation and its limiting motion: building on the
    recent concept of “gradient-flow calibrations” for multiphase mean curvature flow,
    we introduce a notion of relative entropy for the vectorial Allen–Cahn equation
    with multi-well potential. This enables us to overcome the limitations of other
    approaches, e.g. avoiding the need for a stability analysis of the Allen–Cahn
    operator or additional convergence hypotheses for the energy at positive times."
acknowledgement: "The authors thank Sebastian Hensel for useful and helpful commentson
  the first draft of this work.\r\nThis project has received funding from the European
  Research Council (ERC)\r\nunder the European Union’s Horizon 2020 research and innovation
  programme (grant\r\nagreement no. 948819."
article_processing_charge: Yes
article_type: original
author:
- first_name: Julian L
  full_name: Fischer, Julian L
  id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
  last_name: Fischer
  orcid: 0000-0002-0479-558X
- first_name: Alice
  full_name: Marveggio, Alice
  id: 25647992-AA84-11E9-9D75-8427E6697425
  last_name: Marveggio
citation:
  ama: Fischer JL, Marveggio A. Quantitative convergence of the vectorial Allen–Cahn
    equation towards multiphase mean curvature flow. <i>Annales de l’Institut Henri
    Poincaré C</i>. 2024;41(5):1117-1178. doi:<a href="https://doi.org/10.4171/AIHPC/109">10.4171/AIHPC/109</a>
  apa: Fischer, J. L., &#38; Marveggio, A. (2024). Quantitative convergence of the
    vectorial Allen–Cahn equation towards multiphase mean curvature flow. <i>Annales
    de l’Institut Henri Poincaré C</i>. EMS Press. <a href="https://doi.org/10.4171/AIHPC/109">https://doi.org/10.4171/AIHPC/109</a>
  chicago: Fischer, Julian L, and Alice Marveggio. “Quantitative Convergence of the
    Vectorial Allen–Cahn Equation towards Multiphase Mean Curvature Flow.” <i>Annales
    de l’Institut Henri Poincaré C</i>. EMS Press, 2024. <a href="https://doi.org/10.4171/AIHPC/109">https://doi.org/10.4171/AIHPC/109</a>.
  ieee: J. L. Fischer and A. Marveggio, “Quantitative convergence of the vectorial
    Allen–Cahn equation towards multiphase mean curvature flow,” <i>Annales de l’Institut
    Henri Poincaré C</i>, vol. 41, no. 5. EMS Press, pp. 1117–1178, 2024.
  ista: Fischer JL, Marveggio A. 2024. Quantitative convergence of the vectorial Allen–Cahn
    equation towards multiphase mean curvature flow. Annales de l’Institut Henri Poincaré
    C. 41(5), 1117–1178.
  mla: Fischer, Julian L., and Alice Marveggio. “Quantitative Convergence of the Vectorial
    Allen–Cahn Equation towards Multiphase Mean Curvature Flow.” <i>Annales de l’Institut
    Henri Poincaré C</i>, vol. 41, no. 5, EMS Press, 2024, pp. 1117–78, doi:<a href="https://doi.org/10.4171/AIHPC/109">10.4171/AIHPC/109</a>.
  short: J.L. Fischer, A. Marveggio, Annales de l’Institut Henri Poincaré C 41 (2024)
    1117–1178.
corr_author: '1'
das_tickbox: '0'
date_created: 2024-09-01T22:01:09Z
date_published: 2024-01-24T00:00:00Z
date_updated: 2026-10-15T09:49:35Z
day: '24'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.4171/AIHPC/109
ec_funded: 1
external_id:
  isi:
  - '001293853900003'
file:
- access_level: open_access
  checksum: b5ad02d9abd5b4701269cd1ad0a1cc8f
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  date_created: 2024-09-09T07:46:42Z
  date_updated: 2024-09-09T07:46:42Z
  file_id: '17923'
  file_name: 2024_AnnInstHPoincare_Fischer.pdf
  file_size: 1348896
  relation: main_file
  success: 1
file_date_updated: 2024-09-09T07:46:42Z
fulldoi: https://doi.org/10.4171/AIHPC/109
has_accepted_license: '1'
intvolume: '        41'
isi: 1
issue: '5'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 1117-1178
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
  call_identifier: H2020
  grant_number: '948819'
  name: Bridging Scales in Random Materials
publication: Annales de l'Institut Henri Poincaré C
publication_identifier:
  eissn:
  - 1873-1430
  issn:
  - 0294-1449
publication_status: published
publisher: EMS Press
quality_controlled: '1'
related_material:
  record:
  - id: '14597'
    relation: earlier_version
    status: public
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Quantitative convergence of the vectorial Allen–Cahn equation towards multiphase
  mean curvature flow
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 41
year: '2024'
...
---
_id: '17098'
abstract:
- lang: eng
  text: Turn-based discounted-sum games are two-player zero-sum games played on finite
    directed graphs. The vertices of the graph are partitioned between player 1 and
    player 2. Plays are infinite walks on the graph where the next vertex is decided
    by a player that owns the current vertex. Each edge is assigned an integer weight
    and the payoff of a play is the discounted-sum of the weights of the play. The
    goal of player 1 is to maximize the discounted-sum payoff against the adversarial
    player 2. These games lie in NP ∩ coNP and are among the rare combinatorial problems
    that belong to this complexity class and the existence of a polynomial-time algorithm
    is a major open question. Since breaking the general exponential barrier has been
    a challenging problem, faster parameterized algorithms have been considered. If
    the discount factor is expressed in unary, then discounted-sum games can be solved
    in polynomial time. However, if the discount factor is arbitrary (or expressed
    in binary), but the weights are in unary, none of the existing approaches yield
    a sub-exponential bound. Our main result is a new analysis technique for a classical
    algorithm (namely, the strategy iteration algorithm) that present a new runtime
    bound which is [EQUATION] for game graphs with n vertices and absolute weights
    of at most W. In particular, our result yields a deterministic sub-exponential
    bound for games with weights that are constant or represented in unary.
acknowledgement: "This research was partially supported by the ERC CoG 863818 (ForM-SMArt)
  grant.\r\n"
article_number: '6'
article_processing_charge: No
arxiv: 1
author:
- first_name: Ali
  full_name: Asadi, Ali
  id: 02d96aae-000e-11ec-b801-cadd0a5eefbb
  last_name: Asadi
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Jakub
  full_name: Svoboda, Jakub
  id: 130759D2-D7DD-11E9-87D2-DE0DE6697425
  last_name: Svoboda
  orcid: 0000-0002-1419-3267
- first_name: Raimundo J
  full_name: Saona Urmeneta, Raimundo J
  id: BD1DF4C4-D767-11E9-B658-BC13E6697425
  last_name: Saona Urmeneta
  orcid: 0000-0001-5103-038X
citation:
  ama: 'Asadi A, Chatterjee K, Svoboda J, Saona Urmeneta RJ. Deterministic sub-exponential
    algorithm for discounted-sum games with unary weights. In: <i>39th Annual ACM/IEEE
    Symposium on Logic in Computer Science</i>. Association for Computing Machinery;
    2024. doi:<a href="https://doi.org/10.1145/3661814.3662080">10.1145/3661814.3662080</a>'
  apa: 'Asadi, A., Chatterjee, K., Svoboda, J., &#38; Saona Urmeneta, R. J. (2024).
    Deterministic sub-exponential algorithm for discounted-sum games with unary weights.
    In <i>39th Annual ACM/IEEE Symposium on Logic in Computer Science</i>. Tallinn,
    Estonia: Association for Computing Machinery. <a href="https://doi.org/10.1145/3661814.3662080">https://doi.org/10.1145/3661814.3662080</a>'
  chicago: Asadi, Ali, Krishnendu Chatterjee, Jakub Svoboda, and Raimundo J Saona
    Urmeneta. “Deterministic Sub-Exponential Algorithm for Discounted-Sum Games with
    Unary Weights.” In <i>39th Annual ACM/IEEE Symposium on Logic in Computer Science</i>.
    Association for Computing Machinery, 2024. <a href="https://doi.org/10.1145/3661814.3662080">https://doi.org/10.1145/3661814.3662080</a>.
  ieee: A. Asadi, K. Chatterjee, J. Svoboda, and R. J. Saona Urmeneta, “Deterministic
    sub-exponential algorithm for discounted-sum games with unary weights,” in <i>39th
    Annual ACM/IEEE Symposium on Logic in Computer Science</i>, Tallinn, Estonia,
    2024.
  ista: 'Asadi A, Chatterjee K, Svoboda J, Saona Urmeneta RJ. 2024. Deterministic
    sub-exponential algorithm for discounted-sum games with unary weights. 39th Annual
    ACM/IEEE Symposium on Logic in Computer Science. LICS: Logic in Computer Science,
    6.'
  mla: Asadi, Ali, et al. “Deterministic Sub-Exponential Algorithm for Discounted-Sum
    Games with Unary Weights.” <i>39th Annual ACM/IEEE Symposium on Logic in Computer
    Science</i>, 6, Association for Computing Machinery, 2024, doi:<a href="https://doi.org/10.1145/3661814.3662080">10.1145/3661814.3662080</a>.
  short: A. Asadi, K. Chatterjee, J. Svoboda, R.J. Saona Urmeneta, in:, 39th Annual
    ACM/IEEE Symposium on Logic in Computer Science, Association for Computing Machinery,
    2024.
conference:
  end_date: 2024-07-11
  location: Tallinn, Estonia
  name: 'LICS: Logic in Computer Science'
  start_date: 2024-07-08
corr_author: '1'
das_tickbox: '0'
date_created: 2024-06-03T07:43:15Z
date_published: 2024-07-08T00:00:00Z
date_updated: 2026-10-15T09:51:23Z
day: '08'
department:
- _id: KrCh
doi: 10.1145/3661814.3662080
ec_funded: 1
external_id:
  arxiv:
  - '2405.02479'
  isi:
  - '001275042100006'
fulldoi: https://doi.org/10.1145/3661814.3662080
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2405.02479
month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: 39th Annual ACM/IEEE Symposium on Logic in Computer Science
publication_identifier:
  eissn:
  - 1043-6871
  isbn:
  - '9798400706608'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Deterministic sub-exponential algorithm for discounted-sum games with unary
  weights
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '19510'
abstract:
- lang: eng
  text: "We propose a new variant of the Adam optimizer [Kingma and Ba, 2014] called\r\nMICROADAM
    that specifically minimizes memory overheads, while maintaining\r\ntheoretical
    convergence guarantees. We achieve this by compressing the gradient\r\ninformation
    before it is fed into the optimizer state, thereby reducing its memory\r\nfootprint
    significantly. We control the resulting compression error via a novel\r\ninstance
    of the classical error feedback mechanism from distributed optimization [Seide
    et al., 2014, Alistarh et al., 2018, Karimireddy et al., 2019] in which\r\nthe
    error correction information is itself compressed to allow for practical memory\r\ngains.
    We prove that the resulting approach maintains theoretical convergence\r\nguarantees
    competitive to those of AMSGrad, while providing good practical performance. Specifically,
    we show that MICROADAM can be implemented efficiently\r\non GPUs: on both million-scale
    (BERT) and billion-scale (LLaMA) models, MICROADAM provides practical convergence
    competitive to that of the uncompressed\r\nAdam baseline, with lower memory usage
    and similar running time. Our code is\r\navailable at https://github.com/IST-DASLab/MicroAdam."
acknowledged_ssus:
- _id: CampIT
acknowledgement: The authors thank Razvan Pascanu, Mahdi Nikdan and Soroush Tabesh
  for their valuable feedback, the IT department from Institute of Science and Technology
  Austria for the hardware support and Weights and Biases for the infrastructure to
  track all our experiments. Mher Safaryan has received funding from the European
  Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie
  grant agreement No 101034413.
alternative_title:
- Advances in Neural Information Processing Systems
article_processing_charge: No
arxiv: 1
author:
- first_name: Ionut-Vlad
  full_name: Modoranu, Ionut-Vlad
  id: 449f7a18-f128-11eb-9611-9b430c0c6333
  last_name: Modoranu
- first_name: Mher
  full_name: Safaryan, Mher
  id: dd546b39-0804-11ed-9c55-ef075c39778d
  last_name: Safaryan
- first_name: Grigory
  full_name: Malinovsky, Grigory
  last_name: Malinovsky
- first_name: Eldar
  full_name: Kurtic, Eldar
  id: 47beb3a5-07b5-11eb-9b87-b108ec578218
  last_name: Kurtic
- first_name: Thomas
  full_name: Robert, Thomas
  id: de632733-1457-11f0-ae22-b5914b8c1c41
  last_name: Robert
- first_name: Peter
  full_name: Richtárik, Peter
  last_name: Richtárik
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
citation:
  ama: 'Modoranu I-V, Safaryan M, Malinovsky G, et al. MICROADAM: Accurate adaptive
    optimization with low space overhead and provable convergence. In: <i>38th Conference
    on Neural Information Processing Systems</i>. Vol 37. Neural Information Processing
    Systems Foundation; 2024. doi:<a href="https://doi.org/10.52202/079017-0001">10.52202/079017-0001</a>'
  apa: 'Modoranu, I.-V., Safaryan, M., Malinovsky, G., Kurtic, E., Robert, T., Richtárik,
    P., &#38; Alistarh, D.-A. (2024). MICROADAM: Accurate adaptive optimization with
    low space overhead and provable convergence. In <i>38th Conference on Neural Information
    Processing Systems</i> (Vol. 37). Neural Information Processing Systems Foundation.
    <a href="https://doi.org/10.52202/079017-0001">https://doi.org/10.52202/079017-0001</a>'
  chicago: 'Modoranu, Ionut-Vlad, Mher Safaryan, Grigory Malinovsky, Eldar Kurtic,
    Thomas Robert, Peter Richtárik, and Dan-Adrian Alistarh. “MICROADAM: Accurate
    Adaptive Optimization with Low Space Overhead and Provable Convergence.” In <i>38th
    Conference on Neural Information Processing Systems</i>, Vol. 37. Neural Information
    Processing Systems Foundation, 2024. <a href="https://doi.org/10.52202/079017-0001">https://doi.org/10.52202/079017-0001</a>.'
  ieee: 'I.-V. Modoranu <i>et al.</i>, “MICROADAM: Accurate adaptive optimization
    with low space overhead and provable convergence,” in <i>38th Conference on Neural
    Information Processing Systems</i>, 2024, vol. 37.'
  ista: 'Modoranu I-V, Safaryan M, Malinovsky G, Kurtic E, Robert T, Richtárik P,
    Alistarh D-A. 2024. MICROADAM: Accurate adaptive optimization with low space overhead
    and provable convergence. 38th Conference on Neural Information Processing Systems.
    , Advances in Neural Information Processing Systems, vol. 37.'
  mla: 'Modoranu, Ionut-Vlad, et al. “MICROADAM: Accurate Adaptive Optimization with
    Low Space Overhead and Provable Convergence.” <i>38th Conference on Neural Information
    Processing Systems</i>, vol. 37, Neural Information Processing Systems Foundation,
    2024, doi:<a href="https://doi.org/10.52202/079017-0001">10.52202/079017-0001</a>.'
  short: I.-V. Modoranu, M. Safaryan, G. Malinovsky, E. Kurtic, T. Robert, P. Richtárik,
    D.-A. Alistarh, in:, 38th Conference on Neural Information Processing Systems,
    Neural Information Processing Systems Foundation, 2024.
corr_author: '1'
date_created: 2025-04-06T22:01:32Z
date_published: 2024-12-20T00:00:00Z
date_updated: 2026-10-15T09:49:27Z
day: '20'
department:
- _id: DaAl
doi: 10.52202/079017-0001
ec_funded: 1
external_id:
  arxiv:
  - '2405.15593'
fulldoi: https://doi.org/10.52202/079017-0001
intvolume: '        37'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2405.15593
month: '12'
oa: 1
oa_version: Preprint
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
publication: 38th Conference on Neural Information Processing Systems
publication_identifier:
  issn:
  - 1049-5258
publication_status: published
publisher: Neural Information Processing Systems Foundation
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/IST-DASLab/MicroAdam
scopus_import: '1'
status: public
title: 'MICROADAM: Accurate adaptive optimization with low space overhead and provable
  convergence'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '18654'
abstract:
- lang: eng
  text: "We compute the rotational anisotropy of the free energy of \U0001D6FC−RuCl3
    in an external magnetic field. This quantity, known as the magnetotropic susceptibility,
    \U0001D458, relates to the second derivative of the free energy with respect to
    the angle of rotation. We have used approximation-free, auxiliary-field quantum
    Monte Carlo simulations for a realistic model of \U0001D6FC−RuCl3 and optimized
    the path integral to alleviate the negative sign problem. This allows us to reach
    temperatures down to 30K—an energy scale below the dominant Kitaev coupling. We
    demonstrate that the magnetotropic spin susceptibility in this model of \U0001D6FC−RuCl3
    displays scaling behavior \U0001D458=\U0001D447⁢\U0001D453⁡(\U0001D435/\U0001D447)
    at high temperatures. Once the uniform susceptibility departs from the Curie law
    (i.e., at the energy scale of the exchange interactions), it appears to transition
    to an emergent scalinglike behavior, characterized by a different function \U0001D453
    at lower temperatures, stemming from the locality of torque fluctuations. We observe
    a remarkable numerical match between experiment and simulations and we also find
    qualitative agreement with the pure Kitaev model. In comparison, for the XXZ Heisenberg
    Hamiltonian, the scaling \U0001D458=\U0001D447⁢\U0001D453⁡(\U0001D435/\U0001D447)
    breaks down at a temperature scale where the uniform spin susceptibility deviates
    from the Curie law and never reemerges at low temperatures."
acknowledgement: We gratefully acknowledge the Gauss Centre for Supercomputing e.V.
  for funding this project by providing computing time on the GCS Supercomputer SUPERMUC-NG
  at the Leibniz Supercomputing Centre (Project No. pn73xu) as well as the scientific
  support and HPC resources provided by the Erlangen National High Performance Computing
  Center (NHR@FAU) of the Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
  under the NHR Project b133ae. NHR funding is provided by federal and Bavarian state
  authorities. NHR@FAU hardware is partially funded by the German Research Foundation
  (DFG) – 440719683. T.S. thanks funding from the Deutsche Forschungsgemeinschaft
  under Grant No. SA 3986/1-1 as well as the Würzburg-Dresden Cluster of Excellence
  on Complexity and Topology in Quantum Matter ct.qmat (EXC 2147, Project ID 390858490).
  F.F.A. acknowledges financial support from the German Research Foundation (DFG)
  under the Grant AS 120/16-1 (Project No. 493886309) that is part of the collaborative
  research project SFB Q-M&S funded by the Austrian Science Fund (FWF) F 86. K.A.M.
  thanks financial support from the Austrian Science Fund, SFB F 86, Q-M&S.
article_number: L201114
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: Toshihiro
  full_name: Sato, Toshihiro
  last_name: Sato
- first_name: B. J.
  full_name: Ramshaw, B. J.
  last_name: Ramshaw
- first_name: Kimberly A
  full_name: Modic, Kimberly A
  id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
  last_name: Modic
  orcid: 0000-0001-9760-3147
- first_name: Fakher F.
  full_name: Assaad, Fakher F.
  last_name: Assaad
citation:
  ama: 'Sato T, Ramshaw BJ, Modic KA, Assaad FF. Scale-invariant magnetic anisotropy
    in α-RuCl3: A quantum Monte Carlo study. <i>Physical Review B</i>. 2024;110(20).
    doi:<a href="https://doi.org/10.1103/PhysRevB.110.L201114">10.1103/PhysRevB.110.L201114</a>'
  apa: 'Sato, T., Ramshaw, B. J., Modic, K. A., &#38; Assaad, F. F. (2024). Scale-invariant
    magnetic anisotropy in α-RuCl3: A quantum Monte Carlo study. <i>Physical Review
    B</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevB.110.L201114">https://doi.org/10.1103/PhysRevB.110.L201114</a>'
  chicago: 'Sato, Toshihiro, B. J. Ramshaw, Kimberly A Modic, and Fakher F. Assaad.
    “Scale-Invariant Magnetic Anisotropy in α-RuCl3: A Quantum Monte Carlo Study.”
    <i>Physical Review B</i>. American Physical Society, 2024. <a href="https://doi.org/10.1103/PhysRevB.110.L201114">https://doi.org/10.1103/PhysRevB.110.L201114</a>.'
  ieee: 'T. Sato, B. J. Ramshaw, K. A. Modic, and F. F. Assaad, “Scale-invariant magnetic
    anisotropy in α-RuCl3: A quantum Monte Carlo study,” <i>Physical Review B</i>,
    vol. 110, no. 20. American Physical Society, 2024.'
  ista: 'Sato T, Ramshaw BJ, Modic KA, Assaad FF. 2024. Scale-invariant magnetic anisotropy
    in α-RuCl3: A quantum Monte Carlo study. Physical Review B. 110(20), L201114.'
  mla: 'Sato, Toshihiro, et al. “Scale-Invariant Magnetic Anisotropy in α-RuCl3: A
    Quantum Monte Carlo Study.” <i>Physical Review B</i>, vol. 110, no. 20, L201114,
    American Physical Society, 2024, doi:<a href="https://doi.org/10.1103/PhysRevB.110.L201114">10.1103/PhysRevB.110.L201114</a>.'
  short: T. Sato, B.J. Ramshaw, K.A. Modic, F.F. Assaad, Physical Review B 110 (2024).
das_tickbox: '0'
date_created: 2024-12-15T23:01:50Z
date_published: 2024-11-15T00:00:00Z
date_updated: 2026-10-15T09:50:59Z
day: '15'
department:
- _id: KiMo
doi: 10.1103/PhysRevB.110.L201114
external_id:
  arxiv:
  - '2312.03080'
  isi:
  - '001447562900001'
fulldoi: https://doi.org/10.1103/PhysRevB.110.L201114
intvolume: '       110'
isi: 1
issue: '20'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2312.03080
month: '11'
oa: 1
oa_version: Preprint
project:
- _id: 34ac8b51-11ca-11ed-8bc3-86c15daa9f8f
  grant_number: F8607
  name: 'Center for Correlated Quantum Materials and Solid State Quantum Systems:
    Scale- invariance in entangled quantum spin systems'
publication: Physical Review B
publication_identifier:
  eissn:
  - 2469-9969
  issn:
  - 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: 'Scale-invariant magnetic anisotropy in α-RuCl3: A quantum Monte Carlo study'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 110
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '19511'
abstract:
- lang: eng
  text: We introduce QuaRot, a new Quantization scheme based on Rotations, which is
    able to quantize LLMs end-to-end, including all weights, activations, and KV cache
    in 4 bits. QuaRot rotates LLMs in a way that removes outliers from the hidden
    state without changing the output, making quantization easier. This computational
    invariance is applied to the hidden state (residual) of the LLM, as well as to
    the activations of the feed-forward components, aspects of the attention mechanism,
    and to the KV cache. The result is a quantized model where all matrix multiplications
    are performed in 4 bits, without any channels identified for retention in higher
    precision. Our 4-bit quantized LLAMA2-70B model has losses of at most 0.47 WikiText-2
    perplexity and retains 99% of the zero-shot performance. We also show that QuaRot
    can provide lossless 6 and 8 bit LLAMA-2 models without any calibration data using
    round-to-nearest quantization. Code is available at github.com/spcl/QuaRot.
alternative_title:
- Advances in Neural Information Processing Systems
article_processing_charge: No
arxiv: 1
author:
- first_name: Saleh
  full_name: Ashkboos, Saleh
  last_name: Ashkboos
- first_name: Amirkeivan
  full_name: Mohtashami, Amirkeivan
  last_name: Mohtashami
- first_name: Maximilian L.
  full_name: Croci, Maximilian L.
  last_name: Croci
- first_name: Bo
  full_name: Li, Bo
  last_name: Li
- first_name: Pashmina
  full_name: Cameron, Pashmina
  last_name: Cameron
- first_name: Martin
  full_name: Jaggi, Martin
  last_name: Jaggi
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
- first_name: Torsten
  full_name: Hoefler, Torsten
  last_name: Hoefler
- first_name: James
  full_name: Hensman, James
  last_name: Hensman
citation:
  ama: 'Ashkboos S, Mohtashami A, Croci ML, et al. QuaRot: Outlier-free 4-bit inference
    in rotated LLMs. In: <i>38th Conference on Neural Information Processing Systems</i>.
    Vol 37. Neural Information Processing Systems Foundation; 2024. doi:<a href="https://doi.org/10.52202/079017-3180">10.52202/079017-3180</a>'
  apa: 'Ashkboos, S., Mohtashami, A., Croci, M. L., Li, B., Cameron, P., Jaggi, M.,
    … Hensman, J. (2024). QuaRot: Outlier-free 4-bit inference in rotated LLMs. In
    <i>38th Conference on Neural Information Processing Systems</i> (Vol. 37). Vancouver,
    Canada: Neural Information Processing Systems Foundation. <a href="https://doi.org/10.52202/079017-3180">https://doi.org/10.52202/079017-3180</a>'
  chicago: 'Ashkboos, Saleh, Amirkeivan Mohtashami, Maximilian L. Croci, Bo Li, Pashmina
    Cameron, Martin Jaggi, Dan-Adrian Alistarh, Torsten Hoefler, and James Hensman.
    “QuaRot: Outlier-Free 4-Bit Inference in Rotated LLMs.” In <i>38th Conference
    on Neural Information Processing Systems</i>, Vol. 37. Neural Information Processing
    Systems Foundation, 2024. <a href="https://doi.org/10.52202/079017-3180">https://doi.org/10.52202/079017-3180</a>.'
  ieee: 'S. Ashkboos <i>et al.</i>, “QuaRot: Outlier-free 4-bit inference in rotated
    LLMs,” in <i>38th Conference on Neural Information Processing Systems</i>, Vancouver,
    Canada, 2024, vol. 37.'
  ista: 'Ashkboos S, Mohtashami A, Croci ML, Li B, Cameron P, Jaggi M, Alistarh D-A,
    Hoefler T, Hensman J. 2024. QuaRot: Outlier-free 4-bit inference in rotated LLMs.
    38th Conference on Neural Information Processing Systems. NeurIPS: Neural Information
    Processing Systems, Advances in Neural Information Processing Systems, vol. 37.'
  mla: 'Ashkboos, Saleh, et al. “QuaRot: Outlier-Free 4-Bit Inference in Rotated LLMs.”
    <i>38th Conference on Neural Information Processing Systems</i>, vol. 37, Neural
    Information Processing Systems Foundation, 2024, doi:<a href="https://doi.org/10.52202/079017-3180">10.52202/079017-3180</a>.'
  short: S. Ashkboos, A. Mohtashami, M.L. Croci, B. Li, P. Cameron, M. Jaggi, D.-A.
    Alistarh, T. Hoefler, J. Hensman, in:, 38th Conference on Neural Information Processing
    Systems, Neural Information Processing Systems Foundation, 2024.
conference:
  end_date: 2024-12-15
  location: Vancouver, Canada
  name: 'NeurIPS: Neural Information Processing Systems'
  start_date: 2024-12-09
date_created: 2025-04-06T22:01:32Z
date_published: 2024-12-20T00:00:00Z
date_updated: 2026-10-15T09:50:27Z
day: '20'
department:
- _id: DaAl
doi: 10.52202/079017-3180
external_id:
  arxiv:
  - '2404.00456'
fulldoi: https://doi.org/10.52202/079017-3180
intvolume: '        37'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2404.00456
month: '12'
oa: 1
oa_version: Preprint
publication: 38th Conference on Neural Information Processing Systems
publication_identifier:
  issn:
  - 1049-5258
publication_status: published
publisher: Neural Information Processing Systems Foundation
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/spcl/QuaRot
scopus_import: '1'
status: public
title: 'QuaRot: Outlier-free 4-bit inference in rotated LLMs'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2024'
...
---
_id: '15003'
abstract:
- lang: eng
  text: Magnetic frustration allows to access novel and intriguing properties of magnetic
    systems and has been explored mainly in planar triangular-like arrays of magnetic
    ions. In this work, we describe the phosphide Ce6Ni6P17, where the Ce+3 ions accommodate
    in a body-centered cubic lattice of Ce6 regular octahedra. From measurements of
    magnetization, specific heat, and resistivity, we determine a rich phase diagram
    as a function of temperature and magnetic field in which different magnetic phases
    are found. Besides clear evidence of magnetic frustration is obtained from entropy
    analysis. At zero field, a second-order antiferromagnetic transition occurs at
    TN1≈1 K followed by a first-order transition at TN2≈0.45 K. With magnetic field
    new magnetic phases appear, including a weakly first-order transition which ends
    in a classical critical point and a third magnetic phase. We also study the exact
    solution of the spin-1/2 Heisenberg model in an octahedron which allows us a qualitative
    understanding of the phase diagram and compare with the experimental results.
acknowledgement: "The authors thank Bernardo Pentke for the SEM micrographs (Departamento
  Fisicoquímica de Materiales CABCNEA). We are indebted to Julián Sereni for useful
  discussions. D. G. F. acknowledges financial support provided by Agencia I+D+i,
  Argentina, Grant No. PICT-2021-I-INVI00852 and Universidad Nacional de Cuyo (SIIP)
  Grant No. 06/C018-T1. A. A. A. acknowledges financial support provided by PICT 2018-01546
  and PICT 2020A-03661 of the\r\nAgencia I+D+i. "
article_number: '054405'
article_processing_charge: No
article_type: original
author:
- first_name: D. G.
  full_name: Franco, D. G.
  last_name: Franco
- first_name: R.
  full_name: Avalos, R.
  last_name: Avalos
- first_name: D.
  full_name: Hafner, D.
  last_name: Hafner
- first_name: Kimberly A
  full_name: Modic, Kimberly A
  id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
  last_name: Modic
  orcid: 0000-0001-9760-3147
- first_name: Yu
  full_name: Prots, Yu
  last_name: Prots
- first_name: O.
  full_name: Stockert, O.
  last_name: Stockert
- first_name: A.
  full_name: Hoser, A.
  last_name: Hoser
- first_name: P. J.W.
  full_name: Moll, P. J.W.
  last_name: Moll
- first_name: M.
  full_name: Brando, M.
  last_name: Brando
- first_name: A. A.
  full_name: Aligia, A. A.
  last_name: Aligia
- first_name: C.
  full_name: Geibel, C.
  last_name: Geibel
citation:
  ama: Franco DG, Avalos R, Hafner D, et al. Frustrated magnetism in octahedra-based
    Ce6 Ni6 P17. <i>Physical Review B</i>. 2024;109(5). doi:<a href="https://doi.org/10.1103/PhysRevB.109.054405">10.1103/PhysRevB.109.054405</a>
  apa: Franco, D. G., Avalos, R., Hafner, D., Modic, K. A., Prots, Y., Stockert, O.,
    … Geibel, C. (2024). Frustrated magnetism in octahedra-based Ce6 Ni6 P17. <i>Physical
    Review B</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevB.109.054405">https://doi.org/10.1103/PhysRevB.109.054405</a>
  chicago: Franco, D. G., R. Avalos, D. Hafner, Kimberly A Modic, Yu Prots, O. Stockert,
    A. Hoser, et al. “Frustrated Magnetism in Octahedra-Based Ce6 Ni6 P17.” <i>Physical
    Review B</i>. American Physical Society, 2024. <a href="https://doi.org/10.1103/PhysRevB.109.054405">https://doi.org/10.1103/PhysRevB.109.054405</a>.
  ieee: D. G. Franco <i>et al.</i>, “Frustrated magnetism in octahedra-based Ce6 Ni6
    P17,” <i>Physical Review B</i>, vol. 109, no. 5. American Physical Society, 2024.
  ista: Franco DG, Avalos R, Hafner D, Modic KA, Prots Y, Stockert O, Hoser A, Moll
    PJW, Brando M, Aligia AA, Geibel C. 2024. Frustrated magnetism in octahedra-based
    Ce6 Ni6 P17. Physical Review B. 109(5), 054405.
  mla: Franco, D. G., et al. “Frustrated Magnetism in Octahedra-Based Ce6 Ni6 P17.”
    <i>Physical Review B</i>, vol. 109, no. 5, 054405, American Physical Society,
    2024, doi:<a href="https://doi.org/10.1103/PhysRevB.109.054405">10.1103/PhysRevB.109.054405</a>.
  short: D.G. Franco, R. Avalos, D. Hafner, K.A. Modic, Y. Prots, O. Stockert, A.
    Hoser, P.J.W. Moll, M. Brando, A.A. Aligia, C. Geibel, Physical Review B 109 (2024).
das_tickbox: '0'
date_created: 2024-02-18T23:01:01Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2026-10-15T09:50:31Z
day: '01'
department:
- _id: KiMo
doi: 10.1103/PhysRevB.109.054405
external_id:
  isi:
  - '001198571800008'
fulldoi: https://doi.org/10.1103/PhysRevB.109.054405
intvolume: '       109'
isi: 1
issue: '5'
language:
- iso: eng
month: '02'
oa_version: None
publication: Physical Review B
publication_identifier:
  eissn:
  - 2469-9969
  issn:
  - 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: Frustrated magnetism in octahedra-based Ce6 Ni6 P17
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 109
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '18926'
abstract:
- lang: eng
  text: 'We study weak solutions to mean curvature flow satisfying Young’s angle condition
    for general contact angles α ∈ (0, π). First, we construct BV solutions by using
    the Allen-Cahn approximation with boundary contact energy as proposed by Owen
    and Sternberg. Second, we prove the weak-strong uniqueness and stability for this
    solution concept. The main ingredient for both results is a relative energy, which
    can also be interpreted as a tilt excess. '
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sebastian
  full_name: Hensel, Sebastian
  id: 4D23B7DA-F248-11E8-B48F-1D18A9856A87
  last_name: Hensel
  orcid: 0000-0001-7252-8072
- first_name: Tim
  full_name: Laux, Tim
  last_name: Laux
citation:
  ama: 'Hensel S, Laux T. BV solutions for mean curvature flow with constant angle:
    Allen-Cahn approximation and weak-strong uniqueness. <i>Indiana University Mathematics
    Journal</i>. 2024;73(1):111-148. doi:<a href="https://doi.org/10.1512/iumj.2024.73.9701">10.1512/iumj.2024.73.9701</a>'
  apa: 'Hensel, S., &#38; Laux, T. (2024). BV solutions for mean curvature flow with
    constant angle: Allen-Cahn approximation and weak-strong uniqueness. <i>Indiana
    University Mathematics Journal</i>. Indiana University Mathematics Journal. <a
    href="https://doi.org/10.1512/iumj.2024.73.9701">https://doi.org/10.1512/iumj.2024.73.9701</a>'
  chicago: 'Hensel, Sebastian, and Tim Laux. “BV Solutions for Mean Curvature Flow
    with Constant Angle: Allen-Cahn Approximation and Weak-Strong Uniqueness.” <i>Indiana
    University Mathematics Journal</i>. Indiana University Mathematics Journal, 2024.
    <a href="https://doi.org/10.1512/iumj.2024.73.9701">https://doi.org/10.1512/iumj.2024.73.9701</a>.'
  ieee: 'S. Hensel and T. Laux, “BV solutions for mean curvature flow with constant
    angle: Allen-Cahn approximation and weak-strong uniqueness,” <i>Indiana University
    Mathematics Journal</i>, vol. 73, no. 1. Indiana University Mathematics Journal,
    pp. 111–148, 2024.'
  ista: 'Hensel S, Laux T. 2024. BV solutions for mean curvature flow with constant
    angle: Allen-Cahn approximation and weak-strong uniqueness. Indiana University
    Mathematics Journal. 73(1), 111–148.'
  mla: 'Hensel, Sebastian, and Tim Laux. “BV Solutions for Mean Curvature Flow with
    Constant Angle: Allen-Cahn Approximation and Weak-Strong Uniqueness.” <i>Indiana
    University Mathematics Journal</i>, vol. 73, no. 1, Indiana University Mathematics
    Journal, 2024, pp. 111–48, doi:<a href="https://doi.org/10.1512/iumj.2024.73.9701">10.1512/iumj.2024.73.9701</a>.'
  short: S. Hensel, T. Laux, Indiana University Mathematics Journal 73 (2024) 111–148.
corr_author: '1'
date_created: 2025-01-27T15:20:19Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2026-10-15T09:49:54Z
day: '01'
department:
- _id: JuFi
doi: 10.1512/iumj.2024.73.9701
external_id:
  arxiv:
  - '2112.11150'
fulldoi: https://doi.org/10.1512/iumj.2024.73.9701
intvolume: '        73'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2112.11150
month: '01'
oa: 1
oa_version: Preprint
page: 111-148
publication: Indiana University Mathematics Journal
publication_identifier:
  issn:
  - 0022-2518
publication_status: published
publisher: Indiana University Mathematics Journal
quality_controlled: '1'
researchdata_availability: unclear
scopus_import: '1'
status: public
supplementarymaterial: unclear
title: 'BV solutions for mean curvature flow with constant angle: Allen-Cahn approximation
  and weak-strong uniqueness'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 73
year: '2024'
...
