---
OA_place: publisher
OA_type: hybrid
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_id: '20865'
abstract:
- lang: eng
  text: "We prove the convergence of a modified Jordan–Kinderlehrer–Otto scheme to
    a solution\r\nto the Fokker–Planck equation in Ω e R^d with general—strictly positive
    and temporally\r\nconstant—Dirichlet boundary conditions. We work under mild assumptions
    on the domain,\r\nthe drift, and the initial datum. In the special case where
    Ω is an interval in R1, we prove\r\nthat such a solution is a gradient flow—curve
    of maximal slope—within a suitable space of\r\nmeasures, endowed with a modified
    Wasserstein distance. Our discrete scheme and modified\r\ndistance draw inspiration
    from contributions by A. Figalli and N. Gigli [J. Math. Pures\r\nAppl. 94, (2010),
    pp. 107–130], and J. Morales [J. Math. Pures Appl. 112, (2018), pp. 41–88]\r\non
    an optimal-transport approach to evolution equations with Dirichlet boundary conditions.\r\nSimilarly
    to these works, we allow the mass to flow from/to the boundary ∂Ω throughout\r\nthe
    evolution. However, our leading idea is to also keep track of the mass at the
    boundary\r\nby working with measures defined on the whole closure Ω . The driving
    functional is a\r\nmodification of the classical relative entropy that also makes
    use of the information at the\r\nboundary. As an intermediate result, when Ω is
    an interval in R1, we find a formula for the\r\ndescending slope of this geodesically
    nonconvex functional."
acknowledgement: The author would like to thank Jan Maas for suggesting this project
  and for many helpful comments, Antonio Agresti, Lorenzo Dello Schiavo and Julian
  Fischer for several fruitful discussions, Oliver Tse for pointing out the reference
  [10], and the anonymous reviewer for carefully reading this manuscript and providing
  valuable suggestions. He also gratefully acknowledges support from the Austrian
  Science Fund (FWF) project 10.55776/F65.Open access funding provided by Institute
  of Science and Technology (IST Austria).
article_number: '23'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Filippo
  full_name: Quattrocchi, Filippo
  id: 3ebd6ba8-edfb-11eb-afb5-91a9745ba308
  last_name: Quattrocchi
  orcid: 0009-0000-9773-1931
citation:
  ama: Quattrocchi F. Variational structures for the Fokker-Planck equation with general
    Dirichlet boundary conditions. <i>Calculus of Variations and Partial Differential
    Equations</i>. 2026;65(1). doi:<a href="https://doi.org/10.1007/s00526-025-03193-1">10.1007/s00526-025-03193-1</a>
  apa: Quattrocchi, F. (2026). Variational structures for the Fokker-Planck equation
    with general Dirichlet boundary conditions. <i>Calculus of Variations and Partial
    Differential Equations</i>. Springer Nature. <a href="https://doi.org/10.1007/s00526-025-03193-1">https://doi.org/10.1007/s00526-025-03193-1</a>
  chicago: Quattrocchi, Filippo. “Variational Structures for the Fokker-Planck Equation
    with General Dirichlet Boundary Conditions.” <i>Calculus of Variations and Partial
    Differential Equations</i>. Springer Nature, 2026. <a href="https://doi.org/10.1007/s00526-025-03193-1">https://doi.org/10.1007/s00526-025-03193-1</a>.
  ieee: F. Quattrocchi, “Variational structures for the Fokker-Planck equation with
    general Dirichlet boundary conditions,” <i>Calculus of Variations and Partial
    Differential Equations</i>, vol. 65, no. 1. Springer Nature, 2026.
  ista: Quattrocchi F. 2026. Variational structures for the Fokker-Planck equation
    with general Dirichlet boundary conditions. Calculus of Variations and Partial
    Differential Equations. 65(1), 23.
  mla: Quattrocchi, Filippo. “Variational Structures for the Fokker-Planck Equation
    with General Dirichlet Boundary Conditions.” <i>Calculus of Variations and Partial
    Differential Equations</i>, vol. 65, no. 1, 23, Springer Nature, 2026, doi:<a
    href="https://doi.org/10.1007/s00526-025-03193-1">10.1007/s00526-025-03193-1</a>.
  short: F. Quattrocchi, Calculus of Variations and Partial Differential Equations
    65 (2026).
corr_author: '1'
date_created: 2025-12-29T12:06:26Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-04-07T08:37:46Z
day: '01'
ddc:
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doi: 10.1007/s00526-025-03193-1
external_id:
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publication: Calculus of Variations and Partial Differential Equations
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publication_status: published
publisher: Springer Nature
quality_controlled: '1'
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title: Variational structures for the Fokker-Planck equation with general Dirichlet
  boundary conditions
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abstract:
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  text: "The Dean–Kawasaki equation—one of the most fundamental SPDEs of\r\nfluctuating
    hydrodynamics—has been proposed as a model for density fluctuations in weakly
    interacting particle systems. In its original form, it is highly\r\nsingular and
    fails to be renormalizable, even by approaches such as regularity structures and
    paracontrolled distributions, hindering mathematical approaches to its rigorous
    justification. It has been understood recently that it is\r\nnatural to introduce
    a suitable regularization, for example, by applying a formal spatial discretization
    or by truncating high-frequency noise: This yields\r\nwell-posed equations that
    should still precisely approximate the law of the\r\nparticle density fluctuations.\r\nIn
    the present work, we prove that a regularization in the form of a formal\r\ndiscretization
    of the Dean–Kawasaki equation indeed accurately describes\r\ndensity fluctuations
    in systems of weakly interacting diffusing particles: We\r\nshow that, in suitable
    weak metrics, the law of fluctuations as predicted by\r\nthe discretized Dean–Kawasaki
    SPDE approximates the law of fluctuations\r\nof the original particle system,
    up to an error that is of arbitrarily high order in\r\nthe inverse particle number
    and a discretization error. In particular, the Dean–\r\nKawasaki equation provides
    a means for efficient and accurate simulations of\r\ndensity fluctuations in weakly
    interacting particle systems."
acknowledgement: All authors gratefully acknowledge funding from the Austrian Science
  Fund (FWF) through the project F65. CR gratefully acknowledges support from the
  Austrian Science Fund (FWF), grants P30000, P33010, W1245. FC gratefully acknowledges
  funding from the European Union’s Horizon 2020 research and innovation programme
  under the Marie Skłodowska-Curie grant agreement No. 754411.
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Federico
  full_name: Cornalba, Federico
  last_name: Cornalba
- 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: Jonas
  full_name: Ingmanns, Jonas
  id: 71523d30-15b2-11ec-abd3-f80aa909d6b0
  last_name: Ingmanns
  orcid: 0009-0008-1310-7946
- first_name: Claudia
  full_name: Raithel, Claudia
  last_name: Raithel
citation:
  ama: Cornalba F, Fischer JL, Ingmanns J, Raithel C. Density fluctuations in weakly
    interacting particle systems via the Dean–Kawasaki equation. <i>The Annals of
    Probability</i>. 2026;54(1):155-215. doi:<a href="https://doi.org/10.1214/25-aop1763">10.1214/25-aop1763</a>
  apa: Cornalba, F., Fischer, J. L., Ingmanns, J., &#38; Raithel, C. (2026). Density
    fluctuations in weakly interacting particle systems via the Dean–Kawasaki equation.
    <i>The Annals of Probability</i>. Institute of Mathematical Statistics. <a href="https://doi.org/10.1214/25-aop1763">https://doi.org/10.1214/25-aop1763</a>
  chicago: Cornalba, Federico, Julian L Fischer, Jonas Ingmanns, and Claudia Raithel.
    “Density Fluctuations in Weakly Interacting Particle Systems via the Dean–Kawasaki
    Equation.” <i>The Annals of Probability</i>. Institute of Mathematical Statistics,
    2026. <a href="https://doi.org/10.1214/25-aop1763">https://doi.org/10.1214/25-aop1763</a>.
  ieee: F. Cornalba, J. L. Fischer, J. Ingmanns, and C. Raithel, “Density fluctuations
    in weakly interacting particle systems via the Dean–Kawasaki equation,” <i>The
    Annals of Probability</i>, vol. 54, no. 1. Institute of Mathematical Statistics,
    pp. 155–215, 2026.
  ista: Cornalba F, Fischer JL, Ingmanns J, Raithel C. 2026. Density fluctuations
    in weakly interacting particle systems via the Dean–Kawasaki equation. The Annals
    of Probability. 54(1), 155–215.
  mla: Cornalba, Federico, et al. “Density Fluctuations in Weakly Interacting Particle
    Systems via the Dean–Kawasaki Equation.” <i>The Annals of Probability</i>, vol.
    54, no. 1, Institute of Mathematical Statistics, 2026, pp. 155–215, doi:<a href="https://doi.org/10.1214/25-aop1763">10.1214/25-aop1763</a>.
  short: F. Cornalba, J.L. Fischer, J. Ingmanns, C. Raithel, The Annals of Probability
    54 (2026) 155–215.
corr_author: '1'
date_created: 2026-05-20T08:25:25Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-05-21T07:21:25Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1214/25-aop1763
ec_funded: 1
external_id:
  arxiv:
  - '2303.00429'
file:
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file_date_updated: 2026-05-21T07:11:27Z
has_accepted_license: '1'
intvolume: '        54'
issue: '1'
keyword:
- Weakly interacting particle systems
- fluctuating hydrodynamics
- Dean-Kawasaki equation
- stochastic PDEs
- numerical approximation
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 155-215
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: The Annals of Probability
publication_identifier:
  eissn:
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  issn:
  - 0091-1798
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
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status: public
title: Density fluctuations in weakly interacting particle systems via the Dean–Kawasaki
  equation
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type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 54
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...
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_id: '21918'
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "At different stages of my PhD, my work was supported by several
  grants: the\r\nDOC fellowship of the Austrian Academy of Sciences (26293, awarded
  to me),\r\nthe FWF-SFB grant (PT1032F06504 n. F65, awarded to Jan Maas), and the
  ERC\r\ngrant (PR1032ERC01 n. 716117, awarded to Jan Maas). I also appreciate the
  help\r\nfrom the Scientific Computing unit for their advice on the cluster usage."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Kseniia
  full_name: Khudiakova, Kseniia
  id: 4E6DC800-AE37-11E9-AC72-31CAE5697425
  last_name: Khudiakova
  orcid: 0000-0002-6246-1465
citation:
  ama: Khudiakova K. How epistasis and purifying selection shape genetic diversity.
    2026. doi:<a href="https://doi.org/10.15479/AT-ISTA-21918">10.15479/AT-ISTA-21918</a>
  apa: Khudiakova, K. (2026). <i>How epistasis and purifying selection shape genetic
    diversity</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT-ISTA-21918">https://doi.org/10.15479/AT-ISTA-21918</a>
  chicago: Khudiakova, Kseniia. “How Epistasis and Purifying Selection Shape Genetic
    Diversity.” Institute of Science and Technology Austria, 2026. <a href="https://doi.org/10.15479/AT-ISTA-21918">https://doi.org/10.15479/AT-ISTA-21918</a>.
  ieee: K. Khudiakova, “How epistasis and purifying selection shape genetic diversity,”
    Institute of Science and Technology Austria, 2026.
  ista: Khudiakova K. 2026. How epistasis and purifying selection shape genetic diversity.
    Institute of Science and Technology Austria.
  mla: Khudiakova, Kseniia. <i>How Epistasis and Purifying Selection Shape Genetic
    Diversity</i>. Institute of Science and Technology Austria, 2026, doi:<a href="https://doi.org/10.15479/AT-ISTA-21918">10.15479/AT-ISTA-21918</a>.
  short: K. Khudiakova, How Epistasis and Purifying Selection Shape Genetic Diversity,
    Institute of Science and Technology Austria, 2026.
corr_author: '1'
date_created: 2026-05-27T06:26:08Z
date_published: 2026-06-07T00:00:00Z
date_updated: 2026-06-12T12:43:35Z
day: '07'
ddc:
- '576'
degree_awarded: PhD
department:
- _id: GradSch
- _id: NiBa
- _id: JaMa
doi: 10.15479/AT-ISTA-21918
ec_funded: 1
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language:
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month: '06'
oa_version: Published Version
page: '89'
project:
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: 34d33d68-11ca-11ed-8bc3-ec13763c0ca8
  grant_number: '26293'
  name: The impact of deleterious mutations on small populations
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication_identifier:
  issn:
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publication_status: published
publisher: Institute of Science and Technology Austria
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status: public
supervisor:
- first_name: Nicholas H
  full_name: Barton, Nicholas H
  id: 4880FE40-F248-11E8-B48F-1D18A9856A87
  last_name: Barton
  orcid: 0000-0002-8548-5240
- first_name: Jan
  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
title: How epistasis and purifying selection shape genetic diversity
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  short: CC BY-NC-ND (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20814'
abstract:
- lang: eng
  text: We characterize all semigroups sandwiched between the semigroup of a Dirichlet
    form and the semigroup of its active main part. In case the Dirichlet form is
    regular, we give a more explicit description of the quadratic forms of the sandwiched
    semigroups in terms of pairs consisting of an open set and a measure on an abstract
    boundary.
acknowledgement: "Open Access funding enabled and organized by Projekt DEAL. The first
  three authors acknowledge financial support of the DFG within the priority programme
  Geometry at Infinity.\r\nM.W. acknowledges financial support by the German Academic
  Scholarship Foundation, by the Austrian Science Fund (FWF) through grant number
  F65 and the Esprit Programme [ESP 156], and by the European Research Council (ERC)
  under the European Union’s Horizon 2020 research and innovation programme (grant
  agreement No 716117)."
article_number: '6'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Matthias
  full_name: Keller, Matthias
  last_name: Keller
- first_name: Daniel
  full_name: Lenz, Daniel
  last_name: Lenz
- first_name: Marcel
  full_name: Schmidt, Marcel
  last_name: Schmidt
- first_name: Michael
  full_name: Schwarz, Michael
  last_name: Schwarz
- first_name: Melchior
  full_name: Wirth, Melchior
  id: 88644358-0A0E-11EA-8FA5-49A33DDC885E
  last_name: Wirth
  orcid: 0000-0002-0519-4241
citation:
  ama: Keller M, Lenz D, Schmidt M, Schwarz M, Wirth M. Boundary representations of
    intermediate forms between a regular Dirichlet form and its active main part.
    <i>Potential Analysis</i>. 2026;64(1). doi:<a href="https://doi.org/10.1007/s11118-025-10251-y">10.1007/s11118-025-10251-y</a>
  apa: Keller, M., Lenz, D., Schmidt, M., Schwarz, M., &#38; Wirth, M. (2026). Boundary
    representations of intermediate forms between a regular Dirichlet form and its
    active main part. <i>Potential Analysis</i>. Springer Nature. <a href="https://doi.org/10.1007/s11118-025-10251-y">https://doi.org/10.1007/s11118-025-10251-y</a>
  chicago: Keller, Matthias, Daniel Lenz, Marcel Schmidt, Michael Schwarz, and Melchior
    Wirth. “Boundary Representations of Intermediate Forms between a Regular Dirichlet
    Form and Its Active Main Part.” <i>Potential Analysis</i>. Springer Nature, 2026.
    <a href="https://doi.org/10.1007/s11118-025-10251-y">https://doi.org/10.1007/s11118-025-10251-y</a>.
  ieee: M. Keller, D. Lenz, M. Schmidt, M. Schwarz, and M. Wirth, “Boundary representations
    of intermediate forms between a regular Dirichlet form and its active main part,”
    <i>Potential Analysis</i>, vol. 64, no. 1. Springer Nature, 2026.
  ista: Keller M, Lenz D, Schmidt M, Schwarz M, Wirth M. 2026. Boundary representations
    of intermediate forms between a regular Dirichlet form and its active main part.
    Potential Analysis. 64(1), 6.
  mla: Keller, Matthias, et al. “Boundary Representations of Intermediate Forms between
    a Regular Dirichlet Form and Its Active Main Part.” <i>Potential Analysis</i>,
    vol. 64, no. 1, 6, Springer Nature, 2026, doi:<a href="https://doi.org/10.1007/s11118-025-10251-y">10.1007/s11118-025-10251-y</a>.
  short: M. Keller, D. Lenz, M. Schmidt, M. Schwarz, M. Wirth, Potential Analysis
    64 (2026).
das_tickbox: '1'
dataavailabilitystatement: No datasets were generated or analysed during the current
  study.
date_created: 2025-12-14T23:02:03Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-07-27T10:25:46Z
day: '01'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1007/s11118-025-10251-y
ec_funded: 1
external_id:
  arxiv:
  - '2301.01035'
file:
- access_level: open_access
  checksum: 9f5a4e900b8d4c74c6b5bf7c3bad54e1
  content_type: application/pdf
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  file_id: '22414'
  file_name: 2026_PotentialAnalysis_Keller.pdf
  file_size: 445935
  relation: main_file
  success: 1
file_date_updated: 2026-07-27T10:25:21Z
has_accepted_license: '1'
intvolume: '        64'
issue: '1'
keyword:
- Dirichlet forms
- Domination of semigroups
- Dirichlet
- Neumann and Robin boundary conditions
language:
- iso: eng
mathsc:
- 31C15
- 31C25
- 35A15
- 35J10
- 47D07
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: 34c6ea2d-11ca-11ed-8bc3-c04f3c502833
  grant_number: ESP156_N
  name: Gradient flow techniques for quantum Markov semigroups
publication: Potential Analysis
publication_identifier:
  eissn:
  - 1572-929X
  issn:
  - 0926-2601
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Boundary representations of intermediate forms between a regular Dirichlet
  form and its active main part
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user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
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...
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OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '18706'
abstract:
- lang: eng
  text: "We prove discrete-to-continuum convergence for dynamical optimal transport
    on  Zd\r\n -periodic graphs with cost functional having linear growth at infinity.
    This result provides an answer to a problem left open by Gladbach, Kopfer, Maas,
    and Portinale (Calc Var Partial Differential Equations 62(5), 2023), where the
    convergence behaviour of discrete boundary-value dynamical transport problems
    is proved under the stronger assumption of superlinear growth. Our result extends
    the known literature to some important classes of examples, such as scaling limits
    of  1 -Wasserstein transport problems. Similarly to what happens in the quadratic
    case, the geometry of the graph plays a crucial role in the structure of the limit
    cost function, as we discuss in the final part of this work, which includes some
    visual representations."
acknowledgement: L.P. gratefully acknowledges fundings from the Deutsche Forschungsgemeinschaft
  (DFG, German Research Foundation) under Germany’s Excellence Strategy – GZ 2047/1,
  Projekt-ID 390685813. F.Q. gratefully acknowledges support from the Austrian Science
  Fund (FWF) project 10.55776/F65.
article_processing_charge: Yes
article_type: original
author:
- first_name: Lorenzo
  full_name: Portinale, Lorenzo
  id: 30AD2CBC-F248-11E8-B48F-1D18A9856A87
  last_name: Portinale
- first_name: Filippo
  full_name: Quattrocchi, Filippo
  id: 3ebd6ba8-edfb-11eb-afb5-91a9745ba308
  last_name: Quattrocchi
  orcid: 0009-0000-9773-1931
citation:
  ama: Portinale L, Quattrocchi F. Discrete-to-continuum limits of optimal transport
    with linear growth on periodic graphs. <i>European Journal of Applied Mathematics</i>.
    2026;37(3):614-642. doi:<a href="https://doi.org/10.1017/s0956792524000810">10.1017/s0956792524000810</a>
  apa: Portinale, L., &#38; Quattrocchi, F. (2026). Discrete-to-continuum limits of
    optimal transport with linear growth on periodic graphs. <i>European Journal of
    Applied Mathematics</i>. Cambridge University Press. <a href="https://doi.org/10.1017/s0956792524000810">https://doi.org/10.1017/s0956792524000810</a>
  chicago: Portinale, Lorenzo, and Filippo Quattrocchi. “Discrete-to-Continuum Limits
    of Optimal Transport with Linear Growth on Periodic Graphs.” <i>European Journal
    of Applied Mathematics</i>. Cambridge University Press, 2026. <a href="https://doi.org/10.1017/s0956792524000810">https://doi.org/10.1017/s0956792524000810</a>.
  ieee: L. Portinale and F. Quattrocchi, “Discrete-to-continuum limits of optimal
    transport with linear growth on periodic graphs,” <i>European Journal of Applied
    Mathematics</i>, vol. 37, no. 3. Cambridge University Press, pp. 614–642, 2026.
  ista: Portinale L, Quattrocchi F. 2026. Discrete-to-continuum limits of optimal
    transport with linear growth on periodic graphs. European Journal of Applied Mathematics.
    37(3), 614–642.
  mla: Portinale, Lorenzo, and Filippo Quattrocchi. “Discrete-to-Continuum Limits
    of Optimal Transport with Linear Growth on Periodic Graphs.” <i>European Journal
    of Applied Mathematics</i>, vol. 37, no. 3, Cambridge University Press, 2026,
    pp. 614–42, doi:<a href="https://doi.org/10.1017/s0956792524000810">10.1017/s0956792524000810</a>.
  short: L. Portinale, F. Quattrocchi, European Journal of Applied Mathematics 37
    (2026) 614–642.
das_tickbox: '0'
date_created: 2024-12-23T11:03:59Z
date_published: 2026-06-01T00:00:00Z
date_updated: 2026-08-07T22:31:04Z
day: '01'
ddc:
- '500'
department:
- _id: GradSch
- _id: JaMa
doi: 10.1017/s0956792524000810
external_id:
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  - '001381435800001'
file:
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  checksum: d038f4d00cbfbde2672c17138eab21c9
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  creator: dernst
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  date_updated: 2026-07-23T05:55:03Z
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  file_name: 2026_EuropJourAppliedMath_Portinale.pdf
  file_size: 612317
  relation: main_file
  success: 1
file_date_updated: 2026-07-23T05:55:03Z
has_accepted_license: '1'
intvolume: '        37'
isi: 1
issue: '3'
keyword:
- optimal transport
- discrete-to-continuum
- homogenisation
- linear growth
- gamma-convergence
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 614-642
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: European Journal of Applied Mathematics
publication_identifier:
  eissn:
  - 1469-4425
  issn:
  - 0956-7925
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
related_material:
  record:
  - id: '20563'
    relation: dissertation_contains
    status: public
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Discrete-to-continuum limits of optimal transport with linear growth on periodic
  graphs
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
_id: '18632'
abstract:
- lang: eng
  text: 'For an arbitrary dimension (Formula presented.), we study: the polyharmonic
    Gaussian field (Formula presented.) on the discrete torus (Formula presented.),
    that is the random field whose law on (Formula presented.) given by (Formula presented.)
    where (Formula presented.) is the Lebesgue measure and (Formula presented.) is
    the discrete Laplacian; the associated discrete Liouville quantum gravity (LQG)
    measure associated with it, that is, the random measure on (Formula presented.)
    (Formula presented.) where (Formula presented.) is a regularity parameter. As
    (Formula presented.), we prove convergence of the fields (Formula presented.)
    to the polyharmonic Gaussian field (Formula presented.) on the continuous torus
    (Formula presented.), as well as convergence of the random measures (Formula presented.)
    to the LQG measure (Formula presented.) on (Formula presented.), for all (Formula
    presented.). '
acknowledgement: "KTS is grateful to Christoph Thiele for valuable discussions and
  helpful references. LDS is grateful to Nathanaël Berestycki for valuable discussions
  on Gaussian Multiplicative Chaoses. The authors are grateful to an anonymous reviewer
  for suggestions which improved the presentation.\r\nThe authors gratefully acknowledge
  funding by the Deutsche Forschungsgemeinschaft through the project ‘Random Riemannian
  Geometry’ within the SPP 2265 ‘Random Geometric Systems.'\r\nLDS gratefully acknowledges
  financial support from the European Research Council (grant agreement No. 716117,
  awarded to J. Maas) and from the Austrian Science Fund (FWF). His research was funded
  by the Austrian Science Fund (FWF) project 10.55776/F65 and project 10.55776/ESP208.\r\nRH,
  EK, and KTS gratefully acknowledge funding by the Hausdorff Center for Mathematics
  (project ID 390685813), and through project B03 within the CRC 1060 (project ID
  211504053). RH and KTS also gratefully acknowledges financial support from the European
  Research Council through the ERC AdG ‘RicciBounds’ (grant agreement 694405).\r\nOpen
  access funding enabled and organized by Projekt DEAL."
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Lorenzo
  full_name: Dello Schiavo, Lorenzo
  id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
  last_name: Dello Schiavo
  orcid: 0000-0002-9881-6870
- first_name: Ronan
  full_name: Herry, Ronan
  last_name: Herry
- first_name: Eva
  full_name: Kopfer, Eva
  last_name: Kopfer
- first_name: Karl Theodor
  full_name: Sturm, Karl Theodor
  last_name: Sturm
citation:
  ama: 'Dello Schiavo L, Herry R, Kopfer E, Sturm KT. Polyharmonic fields and Liouville
    quantum gravity measures on tori of arbitrary dimension: From discrete to continuous.
    <i>Mathematische Nachrichten</i>. 2025;298(1):244-281. doi:<a href="https://doi.org/10.1002/mana.202400169">10.1002/mana.202400169</a>'
  apa: 'Dello Schiavo, L., Herry, R., Kopfer, E., &#38; Sturm, K. T. (2025). Polyharmonic
    fields and Liouville quantum gravity measures on tori of arbitrary dimension:
    From discrete to continuous. <i>Mathematische Nachrichten</i>. Wiley. <a href="https://doi.org/10.1002/mana.202400169">https://doi.org/10.1002/mana.202400169</a>'
  chicago: 'Dello Schiavo, Lorenzo, Ronan Herry, Eva Kopfer, and Karl Theodor Sturm.
    “Polyharmonic Fields and Liouville Quantum Gravity Measures on Tori of Arbitrary
    Dimension: From Discrete to Continuous.” <i>Mathematische Nachrichten</i>. Wiley,
    2025. <a href="https://doi.org/10.1002/mana.202400169">https://doi.org/10.1002/mana.202400169</a>.'
  ieee: 'L. Dello Schiavo, R. Herry, E. Kopfer, and K. T. Sturm, “Polyharmonic fields
    and Liouville quantum gravity measures on tori of arbitrary dimension: From discrete
    to continuous,” <i>Mathematische Nachrichten</i>, vol. 298, no. 1. Wiley, pp.
    244–281, 2025.'
  ista: 'Dello Schiavo L, Herry R, Kopfer E, Sturm KT. 2025. Polyharmonic fields and
    Liouville quantum gravity measures on tori of arbitrary dimension: From discrete
    to continuous. Mathematische Nachrichten. 298(1), 244–281.'
  mla: 'Dello Schiavo, Lorenzo, et al. “Polyharmonic Fields and Liouville Quantum
    Gravity Measures on Tori of Arbitrary Dimension: From Discrete to Continuous.”
    <i>Mathematische Nachrichten</i>, vol. 298, no. 1, Wiley, 2025, pp. 244–81, doi:<a
    href="https://doi.org/10.1002/mana.202400169">10.1002/mana.202400169</a>.'
  short: L. Dello Schiavo, R. Herry, E. Kopfer, K.T. Sturm, Mathematische Nachrichten
    298 (2025) 244–281.
date_created: 2024-12-08T23:01:56Z
date_published: 2025-01-01T00:00:00Z
date_updated: 2025-04-14T07:27:49Z
day: '01'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1002/mana.202400169
ec_funded: 1
external_id:
  arxiv:
  - '2302.02963'
  isi:
  - '001366948500001'
file:
- access_level: open_access
  checksum: 1dc50d156feb777c86d779fb1c9ac875
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-13T10:34:42Z
  date_updated: 2025-01-13T10:34:42Z
  file_id: '18838'
  file_name: 2025_MathNachrichten_DelloSchiavo.pdf
  file_size: 1734511
  relation: main_file
  success: 1
file_date_updated: 2025-01-13T10:34:42Z
has_accepted_license: '1'
intvolume: '       298'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 244-281
project:
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 34dbf174-11ca-11ed-8bc3-afe9d43d4b9c
  grant_number: E208
  name: Configuration Spaces over Non-Smooth Spaces
publication: Mathematische Nachrichten
publication_identifier:
  eissn:
  - 1522-2616
  issn:
  - 0025-584X
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Polyharmonic fields and Liouville quantum gravity measures on tori of arbitrary
  dimension: From discrete to continuous'
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 298
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19027'
abstract:
- lang: eng
  text: 'Stochastic PDEs of fluctuating hydrodynamics are a powerful tool for the
    description of fluctuations in many-particle systems. In this paper, we develop
    and analyze a multilevel Monte Carlo (MLMC) scheme for the Dean–Kawasaki equation,
    a pivotal representative of this class of SPDEs. We prove analytically and demonstrate
    numerically that our MLMC scheme provides a significant reduction in computational
    cost (with respect to a standard Monte Carlo method) in the simulation of the
    Dean–Kawasaki equation. Specifically, we link this reduction in cost to having
    a sufficiently large average particle density and show that sizeable cost reductions
    can be obtained even when we have solutions with regions of low density. Numerical
    simulations are provided in the two-dimensional case, confirming our theoretical
    predictions. Our results are formulated entirely in terms of the law of distributions
    rather than in terms of strong spatial norms: this crucially allows for MLMC speed-ups
    altogether despite the Dean–Kawasaki equation being highly singular.'
acknowledgement: The work of the authors was supported by the Austrian Science Fund
  (FWF) projectF65.
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Federico
  full_name: Cornalba, Federico
  id: 2CEB641C-A400-11E9-A717-D712E6697425
  last_name: Cornalba
  orcid: 0000-0002-6269-5149
- first_name: Julian L
  full_name: Fischer, Julian L
  id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
  last_name: Fischer
  orcid: 0000-0002-0479-558X
citation:
  ama: Cornalba F, Fischer JL. Multilevel Monte Carlo methods for the Dean–Kawasaki
    equation from fluctuating hydrodynamics. <i>SIAM Journal on Numerical Analysis</i>.
    2025;63(1):262-287. doi:<a href="https://doi.org/10.1137/23M1617345">10.1137/23M1617345</a>
  apa: Cornalba, F., &#38; Fischer, J. L. (2025). Multilevel Monte Carlo methods for
    the Dean–Kawasaki equation from fluctuating hydrodynamics. <i>SIAM Journal on
    Numerical Analysis</i>. Society for Industrial and Applied Mathematics. <a href="https://doi.org/10.1137/23M1617345">https://doi.org/10.1137/23M1617345</a>
  chicago: Cornalba, Federico, and Julian L Fischer. “Multilevel Monte Carlo Methods
    for the Dean–Kawasaki Equation from Fluctuating Hydrodynamics.” <i>SIAM Journal
    on Numerical Analysis</i>. Society for Industrial and Applied Mathematics, 2025.
    <a href="https://doi.org/10.1137/23M1617345">https://doi.org/10.1137/23M1617345</a>.
  ieee: F. Cornalba and J. L. Fischer, “Multilevel Monte Carlo methods for the Dean–Kawasaki
    equation from fluctuating hydrodynamics,” <i>SIAM Journal on Numerical Analysis</i>,
    vol. 63, no. 1. Society for Industrial and Applied Mathematics, pp. 262–287, 2025.
  ista: Cornalba F, Fischer JL. 2025. Multilevel Monte Carlo methods for the Dean–Kawasaki
    equation from fluctuating hydrodynamics. SIAM Journal on Numerical Analysis. 63(1),
    262–287.
  mla: Cornalba, Federico, and Julian L. Fischer. “Multilevel Monte Carlo Methods
    for the Dean–Kawasaki Equation from Fluctuating Hydrodynamics.” <i>SIAM Journal
    on Numerical Analysis</i>, vol. 63, no. 1, Society for Industrial and Applied
    Mathematics, 2025, pp. 262–87, doi:<a href="https://doi.org/10.1137/23M1617345">10.1137/23M1617345</a>.
  short: F. Cornalba, J.L. Fischer, SIAM Journal on Numerical Analysis 63 (2025) 262–287.
corr_author: '1'
date_created: 2025-02-16T23:02:34Z
date_published: 2025-02-01T00:00:00Z
date_updated: 2025-09-30T10:30:31Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1137/23M1617345
external_id:
  arxiv:
  - '2311.08872'
  isi:
  - '001447583400011'
file:
- access_level: open_access
  checksum: 53505647e848ed50f7e0d00c369b14e7
  content_type: application/pdf
  creator: dernst
  date_created: 2025-02-17T08:32:23Z
  date_updated: 2025-02-17T08:32:23Z
  file_id: '19029'
  file_name: 2025_SIAMNumerAnaly_Cornalba.pdf
  file_size: 2435019
  relation: main_file
  success: 1
file_date_updated: 2025-02-17T08:32:23Z
has_accepted_license: '1'
intvolume: '        63'
isi: 1
issue: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: 262-287
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: SIAM Journal on Numerical Analysis
publication_identifier:
  eissn:
  - 1095-7170
  issn:
  - 0036-1429
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multilevel Monte Carlo methods for the Dean–Kawasaki equation from fluctuating
  hydrodynamics
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: '2025'
...
---
OA_place: repository
OA_type: green
_id: '20040'
abstract:
- lang: eng
  text: 'Contractive coupling rates have been recently introduced by Conforti as a
    tool to establish convex Sobolev inequalities (including modified log-Sobolev
    and Poincaré inequality) for some classes of Markov chains. In this work, for
    most of the examples discussed by Conforti, we use contractive coupling rates
    to prove stronger inequalities, in the form of curvature lower bounds (in entropic
    and discrete Bakry–Émery sense) and geodesic convexity of some entropic functionals.
    In addition, we recall and give straightforward generalizations of some notions
    of coarse Ricci curvature, and we discuss some of their properties and relations
    with the concepts of couplings and coupling rates: as an application, we show
    exponential contraction of the p-Wasserstein distance for the heat flow in the
    aforementioned examples.'
acknowledgement: "The author warmly thanks Jan Maas for suggesting the project and
  for his guidance, and Melchior Wirth and Haonan Zhang for useful discussions. The
  author is also grateful to an anonymous reviewer for carefully reading the manuscript
  and providing many valuable suggestions. The author gratefully acknowledges support
  by the European Research Council (ERC) under the European Union’s Horizon 2020 research
  and innovation programme\r\n(grant agreement No. 716117) and by the Austrian Science
  Fund (FWF), Project SFB F65."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Francesco
  full_name: Pedrotti, Francesco
  id: d3ac8ac6-dc8d-11ea-abe3-e2a9628c4c3c
  last_name: Pedrotti
citation:
  ama: Pedrotti F. Contractive coupling rates and curvature lower bounds for Markov
    chains. <i>The Annals of Applied Probability</i>. 2025;35(1):196-250. doi:<a href="https://doi.org/10.1214/24-aap2113">10.1214/24-aap2113</a>
  apa: Pedrotti, F. (2025). Contractive coupling rates and curvature lower bounds
    for Markov chains. <i>The Annals of Applied Probability</i>. Institute of Mathematical
    Statistics. <a href="https://doi.org/10.1214/24-aap2113">https://doi.org/10.1214/24-aap2113</a>
  chicago: Pedrotti, Francesco. “Contractive Coupling Rates and Curvature Lower Bounds
    for Markov Chains.” <i>The Annals of Applied Probability</i>. Institute of Mathematical
    Statistics, 2025. <a href="https://doi.org/10.1214/24-aap2113">https://doi.org/10.1214/24-aap2113</a>.
  ieee: F. Pedrotti, “Contractive coupling rates and curvature lower bounds for Markov
    chains,” <i>The Annals of Applied Probability</i>, vol. 35, no. 1. Institute of
    Mathematical Statistics, pp. 196–250, 2025.
  ista: Pedrotti F. 2025. Contractive coupling rates and curvature lower bounds for
    Markov chains. The Annals of Applied Probability. 35(1), 196–250.
  mla: Pedrotti, Francesco. “Contractive Coupling Rates and Curvature Lower Bounds
    for Markov Chains.” <i>The Annals of Applied Probability</i>, vol. 35, no. 1,
    Institute of Mathematical Statistics, 2025, pp. 196–250, doi:<a href="https://doi.org/10.1214/24-aap2113">10.1214/24-aap2113</a>.
  short: F. Pedrotti, The Annals of Applied Probability 35 (2025) 196–250.
corr_author: '1'
date_created: 2025-07-21T07:49:15Z
date_published: 2025-02-01T00:00:00Z
date_updated: 2025-11-05T13:50:07Z
day: '01'
department:
- _id: JaMa
doi: 10.1214/24-aap2113
ec_funded: 1
external_id:
  arxiv:
  - '2308.00516'
  isi:
  - '001434322900006'
intvolume: '        35'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2308.00516
month: '02'
oa: 1
oa_version: Preprint
page: 196 - 250
project:
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: The Annals of Applied Probability
publication_identifier:
  issn:
  - 1050-5164
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
related_material:
  record:
  - id: '17351'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Contractive coupling rates and curvature lower bounds for Markov chains
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 35
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '20050'
abstract:
- lang: eng
  text: We prove upper bounds on the L∞-Wasserstein distance from optimal transport
    between strongly log-concave probability densities and log-Lipschitz perturbations.
    In the simplest setting, such a bound amounts to a transport-information inequality
    involving the L∞-Wasserstein metric and the relative L∞-Fisher information. We
    show that this inequality can be sharpened significantly in situations where the
    involved densities are anisotropic. Our proof is based on probabilistic techniques
    using Langevin dynamics. As an application of these results, we obtain sharp exponential
    rates of convergence in Fisher’s infinitesimal model from quantitative genetics,
    generalising recent results by Calvez, Poyato, and Santambrogio in dimension 1
    to arbitrary dimensions.
acknowledgement: This research was funded in part by the Austrian Science Fund (FWF)
  project 10.55776/F65 and the Austrian Academy of Science, DOC fellowship nr. 26293.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Kseniia
  full_name: Khudiakova, Kseniia
  id: 4E6DC800-AE37-11E9-AC72-31CAE5697425
  last_name: Khudiakova
  orcid: 0000-0002-6246-1465
- first_name: Jan
  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
- first_name: Francesco
  full_name: Pedrotti, Francesco
  id: d3ac8ac6-dc8d-11ea-abe3-e2a9628c4c3c
  last_name: Pedrotti
citation:
  ama: Khudiakova K, Maas J, Pedrotti F. L∞-optimal transport of anisotropic log-concave
    measures and exponential convergence in Fisher’s infinitesimal model. <i>The Annals
    of Applied Probability</i>. 2025;35(3):1913-1940. doi:<a href="https://doi.org/10.1214/25-aap2162">10.1214/25-aap2162</a>
  apa: Khudiakova, K., Maas, J., &#38; Pedrotti, F. (2025). L∞-optimal transport of
    anisotropic log-concave measures and exponential convergence in Fisher’s infinitesimal
    model. <i>The Annals of Applied Probability</i>. Institute of Mathematical Statistics.
    <a href="https://doi.org/10.1214/25-aap2162">https://doi.org/10.1214/25-aap2162</a>
  chicago: Khudiakova, Kseniia, Jan Maas, and Francesco Pedrotti. “L∞-Optimal Transport
    of Anisotropic Log-Concave Measures and Exponential Convergence in Fisher’s Infinitesimal
    Model.” <i>The Annals of Applied Probability</i>. Institute of Mathematical Statistics,
    2025. <a href="https://doi.org/10.1214/25-aap2162">https://doi.org/10.1214/25-aap2162</a>.
  ieee: K. Khudiakova, J. Maas, and F. Pedrotti, “L∞-optimal transport of anisotropic
    log-concave measures and exponential convergence in Fisher’s infinitesimal model,”
    <i>The Annals of Applied Probability</i>, vol. 35, no. 3. Institute of Mathematical
    Statistics, pp. 1913–1940, 2025.
  ista: Khudiakova K, Maas J, Pedrotti F. 2025. L∞-optimal transport of anisotropic
    log-concave measures and exponential convergence in Fisher’s infinitesimal model.
    The Annals of Applied Probability. 35(3), 1913–1940.
  mla: Khudiakova, Kseniia, et al. “L∞-Optimal Transport of Anisotropic Log-Concave
    Measures and Exponential Convergence in Fisher’s Infinitesimal Model.” <i>The
    Annals of Applied Probability</i>, vol. 35, no. 3, Institute of Mathematical Statistics,
    2025, pp. 1913–40, doi:<a href="https://doi.org/10.1214/25-aap2162">10.1214/25-aap2162</a>.
  short: K. Khudiakova, J. Maas, F. Pedrotti, The Annals of Applied Probability 35
    (2025) 1913–1940.
corr_author: '1'
date_created: 2025-07-21T08:13:54Z
date_published: 2025-06-01T00:00:00Z
date_updated: 2025-09-30T14:12:48Z
day: '01'
department:
- _id: JaMa
doi: 10.1214/25-aap2162
external_id:
  arxiv:
  - '2402.04151'
  isi:
  - '001523520000012'
intvolume: '        35'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2402.04151
month: '06'
oa: 1
oa_version: Preprint
page: 1913-1940
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 34d33d68-11ca-11ed-8bc3-ec13763c0ca8
  grant_number: '26293'
  name: The impact of deleterious mutations on small populations
publication: The Annals of Applied Probability
publication_identifier:
  issn:
  - 1050-5164
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
related_material:
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  - id: '17352'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: L∞-optimal transport of anisotropic log-concave measures and exponential convergence
  in Fisher’s infinitesimal model
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 35
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20591'
abstract:
- lang: eng
  text: In this paper we derive estimates for the Hessian of the logarithm (log-Hessian)
    for solutions to the heat equation. For initial data in the form of log-Lipschitz
    perturbation of strongly log-concave measures, the log-Hessian admits an explicit,
    uniform (in space) lower bound. This yields a new estimate for the Lipschitz constant
    of a transport map pushing forward the standard Gaussian to a measure in this
    class. On the other hand, we show that assuming only fast decay of the tails of
    the initial datum does not suffice to guarantee uniform log-Hessian upper bounds.
acknowledgement: This research was funded in part by the Austrian Science Fund (FWF)
  project 10.55776/F65 and by the European Union’s Horizon 2020 research and innovation
  programme under the Marie Sklodowska-Curie grant agreement No 101034413. The authors
  thank Professors Jean Dolbeault, Jan Maas, and Nikita Simonov for many useful comments,
  and Professors Kazuhiro Ishige, Asuka Takatsu, and Yair Shenfeld for inspiring interactions.
article_number: '71'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Giovanni
  full_name: Brigati, Giovanni
  id: 63ff57e8-1fbb-11ee-88f2-f558ffc59cf1
  last_name: Brigati
- first_name: Francesco
  full_name: Pedrotti, Francesco
  id: d3ac8ac6-dc8d-11ea-abe3-e2a9628c4c3c
  last_name: Pedrotti
citation:
  ama: Brigati G, Pedrotti F. Heat flow, log-concavity, and Lipschitz transport maps.
    <i>Electronic Communications in Probability</i>. 2025;30. doi:<a href="https://doi.org/10.1214/25-ECP717">10.1214/25-ECP717</a>
  apa: Brigati, G., &#38; Pedrotti, F. (2025). Heat flow, log-concavity, and Lipschitz
    transport maps. <i>Electronic Communications in Probability</i>. Institute of
    Mathematical Statistics. <a href="https://doi.org/10.1214/25-ECP717">https://doi.org/10.1214/25-ECP717</a>
  chicago: Brigati, Giovanni, and Francesco Pedrotti. “Heat Flow, Log-Concavity, and
    Lipschitz Transport Maps.” <i>Electronic Communications in Probability</i>. Institute
    of Mathematical Statistics, 2025. <a href="https://doi.org/10.1214/25-ECP717">https://doi.org/10.1214/25-ECP717</a>.
  ieee: G. Brigati and F. Pedrotti, “Heat flow, log-concavity, and Lipschitz transport
    maps,” <i>Electronic Communications in Probability</i>, vol. 30. Institute of
    Mathematical Statistics, 2025.
  ista: Brigati G, Pedrotti F. 2025. Heat flow, log-concavity, and Lipschitz transport
    maps. Electronic Communications in Probability. 30, 71.
  mla: Brigati, Giovanni, and Francesco Pedrotti. “Heat Flow, Log-Concavity, and Lipschitz
    Transport Maps.” <i>Electronic Communications in Probability</i>, vol. 30, 71,
    Institute of Mathematical Statistics, 2025, doi:<a href="https://doi.org/10.1214/25-ECP717">10.1214/25-ECP717</a>.
  short: G. Brigati, F. Pedrotti, Electronic Communications in Probability 30 (2025).
corr_author: '1'
date_created: 2025-11-02T23:01:35Z
date_published: 2025-09-25T00:00:00Z
date_updated: 2025-12-01T15:08:54Z
day: '25'
ddc:
- '500'
department:
- _id: JaMa
doi: 10.1214/25-ECP717
ec_funded: 1
external_id:
  arxiv:
  - '2404.15205'
  isi:
  - '001611557000018'
file:
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  date_updated: 2025-11-04T07:34:05Z
  file_id: '20596'
  file_name: 2025_ElectronJourProbab_Brigati.pdf
  file_size: 278078
  relation: main_file
  success: 1
file_date_updated: 2025-11-04T07:34:05Z
has_accepted_license: '1'
intvolume: '        30'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
publication: Electronic Communications in Probability
publication_identifier:
  eissn:
  - 1083-589X
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
related_material:
  record:
  - id: '17353'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Heat flow, log-concavity, and Lipschitz transport maps
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '20569'
abstract:
- lang: eng
  text: 'This is the first part of a general description in terms of mass transport
    for time-evolving interacting particles systems, at a mesoscopic level. Beyond
    kinetic theory, our framework naturally applies in biology, computer vision, and
    engineering. The central object of our study is a new discrepancy d between two
    probability distributions in position and velocity states, which is reminiscent
    of the 2-Wasserstein distance, but of second-order nature. We construct d in two
    steps. First, we optimise over transport plans. The cost function is given by
    the minimal acceleration between two coupled states on a fixed time horizon T.
    Second, we further optimise over the time horizon T > 0. We prove the existence
    of optimal transport plans and maps, and study two time-continuous characterisations
    of d. One is given in terms of dynamical transport plans. The other one -- in
    the spirit of the Benamou--Brenier formula -- is formulated as the minimisation
    of an action of the acceleration field, constrained by Vlasov''s equations. Equivalence
    of static and dynamical formulations of d holds true. While part of this result
    can be derived from recent, parallel developments in optimal control between measures,
    we give an original proof relying on two new ingredients: Galilean regularisation
    of Vlasov''s equations and a kinetic Monge--Mather shortening principle. Finally,
    we establish a first-order differential calculus in the geometry induced by d,
    and identify solutions to Vlasov''s equations with curves of measures satisfying
    a certain d-absolute continuity condition. One consequence is an explicit formula
    for the d-derivative of such curves.'
acknowledgement: "This work was partially inspired by an unpublished note from 2014
  by Guillaume Carlier,\r\nJean Dolbeault, and Bruno Nazaret. GB deeply thanks Jean
  Dolbeault for proposing\r\nthis problem to him, guiding him into the subject, and
  sharing the aforementioned note.\r\nWe are grateful to Karthik Elamvazhuthi for
  making us aware of the work [20].\r\nThe work of GB has received funding from the
  European Union’s Horizon 2020 research and innovation programme under the Marie
  Sklodowska-Curie grant agreement\r\nNo 101034413.\r\nJM and FQ gratefully acknowledge
  support from the Austrian Science Fund (FWF)\r\nproject 10.55776/F65."
article_number: '2502.15665'
article_processing_charge: No
arxiv: 1
author:
- first_name: Giovanni
  full_name: Brigati, Giovanni
  id: 63ff57e8-1fbb-11ee-88f2-f558ffc59cf1
  last_name: Brigati
- first_name: Jan
  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
- first_name: Filippo
  full_name: Quattrocchi, Filippo
  id: 3ebd6ba8-edfb-11eb-afb5-91a9745ba308
  last_name: Quattrocchi
  orcid: 0009-0000-9773-1931
citation:
  ama: 'Brigati G, Maas J, Quattrocchi F. Kinetic Optimal Transport (OTIKIN) -- Part
    1: Second-order discrepancies between probability measures. <i>arXiv</i>. doi:<a
    href="https://doi.org/10.48550/arXiv.2502.15665">10.48550/arXiv.2502.15665</a>'
  apa: 'Brigati, G., Maas, J., &#38; Quattrocchi, F. (n.d.). Kinetic Optimal Transport
    (OTIKIN) -- Part 1: Second-order discrepancies between probability measures. <i>arXiv</i>.
    <a href="https://doi.org/10.48550/arXiv.2502.15665">https://doi.org/10.48550/arXiv.2502.15665</a>'
  chicago: 'Brigati, Giovanni, Jan Maas, and Filippo Quattrocchi. “Kinetic Optimal
    Transport (OTIKIN) -- Part 1: Second-Order Discrepancies between Probability Measures.”
    <i>ArXiv</i>, n.d. <a href="https://doi.org/10.48550/arXiv.2502.15665">https://doi.org/10.48550/arXiv.2502.15665</a>.'
  ieee: 'G. Brigati, J. Maas, and F. Quattrocchi, “Kinetic Optimal Transport (OTIKIN)
    -- Part 1: Second-order discrepancies between probability measures,” <i>arXiv</i>.
    .'
  ista: 'Brigati G, Maas J, Quattrocchi F. Kinetic Optimal Transport (OTIKIN) -- Part
    1: Second-order discrepancies between probability measures. arXiv, 2502.15665.'
  mla: 'Brigati, Giovanni, et al. “Kinetic Optimal Transport (OTIKIN) -- Part 1: Second-Order
    Discrepancies between Probability Measures.” <i>ArXiv</i>, 2502.15665, doi:<a
    href="https://doi.org/10.48550/arXiv.2502.15665">10.48550/arXiv.2502.15665</a>.'
  short: G. Brigati, J. Maas, F. Quattrocchi, ArXiv (n.d.).
corr_author: '1'
date_created: 2025-10-28T13:12:08Z
date_published: 2025-08-10T00:00:00Z
date_updated: 2026-08-07T22:31:03Z
day: '10'
department:
- _id: GradSch
- _id: JaMa
doi: 10.48550/arXiv.2502.15665
ec_funded: 1
external_id:
  arxiv:
  - '2502.15665'
keyword:
- optimal transport
- kinetic theory
- second-order discrepancy
- Vlasov equation
- Wasserstein splines.
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2502.15665
month: '08'
oa: 1
oa_version: Preprint
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '20563'
    relation: dissertation_contains
    status: public
status: public
title: 'Kinetic Optimal Transport (OTIKIN) -- Part 1: Second-order discrepancies between
  probability measures'
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2025'
...
---
_id: '14451'
abstract:
- lang: eng
  text: 'We investigate the potential of Multi-Objective, Deep Reinforcement Learning
    for stock and cryptocurrency single-asset trading: in particular, we consider
    a Multi-Objective algorithm which generalizes the reward functions and discount
    factor (i.e., these components are not specified a priori, but incorporated in
    the learning process). Firstly, using several important assets (BTCUSD, ETHUSDT,
    XRPUSDT, AAPL, SPY, NIFTY50), we verify the reward generalization property of
    the proposed Multi-Objective algorithm, and provide preliminary statistical evidence
    showing increased predictive stability over the corresponding Single-Objective
    strategy. Secondly, we show that the Multi-Objective algorithm has a clear edge
    over the corresponding Single-Objective strategy when the reward mechanism is
    sparse (i.e., when non-null feedback is infrequent over time). Finally, we discuss
    the generalization properties with respect to the discount factor. The entirety
    of our code is provided in open-source format.'
acknowledgement: Open access funding provided by Università degli Studi di Trieste
  within the CRUI-CARE Agreement. Funding was provided by Austrian Science Fund (Grant
  No. F65), Horizon 2020 (Grant No. 754411) and Österreichische Forschungsförderungsgesellschaft.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Federico
  full_name: Cornalba, Federico
  id: 2CEB641C-A400-11E9-A717-D712E6697425
  last_name: Cornalba
  orcid: 0000-0002-6269-5149
- first_name: Constantin
  full_name: Disselkamp, Constantin
  last_name: Disselkamp
- first_name: Davide
  full_name: Scassola, Davide
  last_name: Scassola
- first_name: Christopher
  full_name: Helf, Christopher
  last_name: Helf
citation:
  ama: 'Cornalba F, Disselkamp C, Scassola D, Helf C. Multi-objective reward generalization:
    Improving performance of Deep Reinforcement Learning for applications in single-asset
    trading. <i>Neural Computing and Applications</i>. 2024;36(2):617-637. doi:<a
    href="https://doi.org/10.1007/s00521-023-09033-7">10.1007/s00521-023-09033-7</a>'
  apa: 'Cornalba, F., Disselkamp, C., Scassola, D., &#38; Helf, C. (2024). Multi-objective
    reward generalization: Improving performance of Deep Reinforcement Learning for
    applications in single-asset trading. <i>Neural Computing and Applications</i>.
    Springer Nature. <a href="https://doi.org/10.1007/s00521-023-09033-7">https://doi.org/10.1007/s00521-023-09033-7</a>'
  chicago: 'Cornalba, Federico, Constantin Disselkamp, Davide Scassola, and Christopher
    Helf. “Multi-Objective Reward Generalization: Improving Performance of Deep Reinforcement
    Learning for Applications in Single-Asset Trading.” <i>Neural Computing and Applications</i>.
    Springer Nature, 2024. <a href="https://doi.org/10.1007/s00521-023-09033-7">https://doi.org/10.1007/s00521-023-09033-7</a>.'
  ieee: 'F. Cornalba, C. Disselkamp, D. Scassola, and C. Helf, “Multi-objective reward
    generalization: Improving performance of Deep Reinforcement Learning for applications
    in single-asset trading,” <i>Neural Computing and Applications</i>, vol. 36, no.
    2. Springer Nature, pp. 617–637, 2024.'
  ista: 'Cornalba F, Disselkamp C, Scassola D, Helf C. 2024. Multi-objective reward
    generalization: Improving performance of Deep Reinforcement Learning for applications
    in single-asset trading. Neural Computing and Applications. 36(2), 617–637.'
  mla: 'Cornalba, Federico, et al. “Multi-Objective Reward Generalization: Improving
    Performance of Deep Reinforcement Learning for Applications in Single-Asset Trading.”
    <i>Neural Computing and Applications</i>, vol. 36, no. 2, Springer Nature, 2024,
    pp. 617–37, doi:<a href="https://doi.org/10.1007/s00521-023-09033-7">10.1007/s00521-023-09033-7</a>.'
  short: F. Cornalba, C. Disselkamp, D. Scassola, C. Helf, Neural Computing and Applications
    36 (2024) 617–637.
corr_author: '1'
date_created: 2023-10-22T22:01:16Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2025-04-23T07:39:14Z
day: '01'
ddc:
- '000'
department:
- _id: JuFi
doi: 10.1007/s00521-023-09033-7
ec_funded: 1
external_id:
  arxiv:
  - '2203.04579'
  pmid:
  - '38187995'
file:
- access_level: open_access
  checksum: 04573d8e74c6119b97c2ca0a984e19a1
  content_type: application/pdf
  creator: dernst
  date_created: 2024-07-16T08:08:54Z
  date_updated: 2024-07-16T08:08:54Z
  file_id: '17251'
  file_name: 2024_NeuralCompApplications_Cornalba.pdf
  file_size: 4412285
  relation: main_file
  success: 1
file_date_updated: 2024-07-16T08:08:54Z
has_accepted_license: '1'
intvolume: '        36'
issue: '2'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 617-637
pmid: 1
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Neural Computing and Applications
publication_identifier:
  eissn:
  - 1433-3058
  issn:
  - 0941-0643
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Multi-objective reward generalization: Improving performance of Deep Reinforcement
  Learning for applications in single-asset trading'
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 36
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
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).
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-23T00:00:00Z
date_updated: 2025-09-04T11:54:01Z
day: '23'
department:
- _id: JuFi
doi: 10.1007/s00332-023-10005-3
external_id:
  arxiv:
  - '2306.05151'
  isi:
  - '001147480200001'
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'
scopus_import: '1'
status: public
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: hybrid
_id: '14934'
abstract:
- lang: eng
  text: "We study random perturbations of a Riemannian manifold (M, g) by means of
    so-called\r\nFractional Gaussian Fields, which are defined intrinsically by the
    given manifold. The fields\r\nh• : ω \x02→ hω will act on the manifold via the
    conformal transformation g \x02→ gω := e2hω g.\r\nOur focus will be on the regular
    case with Hurst parameter H > 0, the critical case H = 0\r\nbeing the celebrated
    Liouville geometry in two dimensions. We want to understand how basic\r\ngeometric
    and functional-analytic quantities like diameter, volume, heat kernel, Brownian\r\nmotion,
    spectral bound, or spectral gap change under the influence of the noise. And if
    so, is\r\nit possible to quantify these dependencies in terms of key parameters
    of the noise? Another\r\ngoal is to define and analyze in detail the Fractional
    Gaussian Fields on a general Riemannian\r\nmanifold, a fascinating object of independent
    interest."
acknowledgement: "The authors would like to thank Matthias Erbar and Ronan Herry for
  valuable discussions on this project. They are also grateful to Nathanaël Berestycki,
  and Fabrice Baudoin for respectively pointing out the references [7], and [6, 24],
  and to Julien Fageot and Thomas Letendre for pointing out a mistake in a previous
  version of the proof of Proposition 3.10. The authors feel very much indebted to
  an anonymous reviewer for his/her careful reading and the many valuable suggestions
  that have significantly contributed to the improvement of the paper. L.D.S. gratefully
  acknowledges financial support by the Deutsche Forschungsgemeinschaft through CRC
  1060 as well as through SPP 2265, and by the Austrian Science Fund (FWF) grant F65
  at Institute of Science and Technology Austria. This research was funded in whole
  or in part by the Austrian Science Fund (FWF) ESPRIT 208. For the purpose of open
  access, the authors have applied a CC BY public copyright licence to any Author
  Accepted Manuscript version arising from this submission. E.K. and K.-T.S. gratefully
  acknowledge funding by the Deutsche Forschungsgemeinschaft through the Hausdorff
  Center for Mathematics and through CRC 1060 as well as through SPP 2265.\r\nOpen
  Access funding enabled and organized by Projekt DEAL."
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Lorenzo
  full_name: Dello Schiavo, Lorenzo
  id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
  last_name: Dello Schiavo
  orcid: 0000-0002-9881-6870
- first_name: Eva
  full_name: Kopfer, Eva
  last_name: Kopfer
- first_name: Karl Theodor
  full_name: Sturm, Karl Theodor
  last_name: Sturm
citation:
  ama: Dello Schiavo L, Kopfer E, Sturm KT. A discovery tour in random Riemannian
    geometry. <i>Potential Analysis</i>. 2024;61:501-553. doi:<a href="https://doi.org/10.1007/s11118-023-10118-0">10.1007/s11118-023-10118-0</a>
  apa: Dello Schiavo, L., Kopfer, E., &#38; Sturm, K. T. (2024). A discovery tour
    in random Riemannian geometry. <i>Potential Analysis</i>. Springer Nature. <a
    href="https://doi.org/10.1007/s11118-023-10118-0">https://doi.org/10.1007/s11118-023-10118-0</a>
  chicago: Dello Schiavo, Lorenzo, Eva Kopfer, and Karl Theodor Sturm. “A Discovery
    Tour in Random Riemannian Geometry.” <i>Potential Analysis</i>. Springer Nature,
    2024. <a href="https://doi.org/10.1007/s11118-023-10118-0">https://doi.org/10.1007/s11118-023-10118-0</a>.
  ieee: L. Dello Schiavo, E. Kopfer, and K. T. Sturm, “A discovery tour in random
    Riemannian geometry,” <i>Potential Analysis</i>, vol. 61. Springer Nature, pp.
    501–553, 2024.
  ista: Dello Schiavo L, Kopfer E, Sturm KT. 2024. A discovery tour in random Riemannian
    geometry. Potential Analysis. 61, 501–553.
  mla: Dello Schiavo, Lorenzo, et al. “A Discovery Tour in Random Riemannian Geometry.”
    <i>Potential Analysis</i>, vol. 61, Springer Nature, 2024, pp. 501–53, doi:<a
    href="https://doi.org/10.1007/s11118-023-10118-0">10.1007/s11118-023-10118-0</a>.
  short: L. Dello Schiavo, E. Kopfer, K.T. Sturm, Potential Analysis 61 (2024) 501–553.
date_created: 2024-02-04T23:00:54Z
date_published: 2024-10-01T00:00:00Z
date_updated: 2025-09-04T11:57:14Z
day: '01'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1007/s11118-023-10118-0
external_id:
  arxiv:
  - '2012.06796'
  isi:
  - '001151118800001'
file:
- access_level: open_access
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  date_updated: 2025-01-09T08:13:34Z
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  file_size: 1294993
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has_accepted_license: '1'
intvolume: '        61'
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language:
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month: '10'
oa: 1
oa_version: Published Version
page: 501-553
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: Potential Analysis
publication_identifier:
  eissn:
  - 1572-929X
  issn:
  - 0926-2601
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: A discovery tour in random Riemannian geometry
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: 61
year: '2024'
...
---
_id: '15317'
abstract:
- lang: eng
  text: 'We consider the open symmetric exclusion (SEP) and inclusion (SIP) processes
    on a bounded Lipschitz domain Ω, with both fast and slow boundary. For the random
    walks on Ω dual to SEP/SIP we establish: a functional-CLT-type convergence to
    the Brownian motion on Ω with either Neumann (slow boundary), Dirichlet (fast
    boundary), or Robin (at criticality) boundary conditions; the discrete-to-continuum
    convergence of the corresponding harmonic profiles. As a consequence, we rigorously
    derive the hydrodynamic and hydrostatic limits for SEP/SIP on Ω, and analyze their
    stationary nonequilibrium fluctuations. All scaling limit results for SEP/SIP
    concern finite-dimensional distribution convergence only, as our duality techniques
    do not require to establish tightness for the fields associated to the particle
    systems.'
acknowledgement: "The first author gratefully acknowledges funding by the Austrian
  Science Fund (FWF) grant F65, by the European Research Council (ERC, grant agreement
  No 716117, awarded to Prof. Dr. Jan Maas). He also gratefully acknowledges funding
  of his current position by the Austrian Science Fund (FWF) grant ESPRIT 208.\r\nThe
  second author gratefully acknowledges funding by the Hausdorff Center for Mathematics
  at the University of Bonn. Part of this work was completed while this author was
  a member of the Institute of Science and Technology Austria. He gratefully acknowledges
  funding of his position at that time by the Austrian Science Fund (FWF) grants F65
  and W1245.\r\nThe third author gratefully acknowledges funding by the Lise Meitner
  fellowship, Austrian Science Fund (FWF): M3211. Part of this work was completed
  while funded by the European Union’s Horizon 2020 research and innovation programme
  under the Marie-Skłodowska-Curie grant agreement No. 754411."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Lorenzo
  full_name: Dello Schiavo, Lorenzo
  id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
  last_name: Dello Schiavo
  orcid: 0000-0002-9881-6870
- first_name: Lorenzo
  full_name: Portinale, Lorenzo
  id: 30AD2CBC-F248-11E8-B48F-1D18A9856A87
  last_name: Portinale
- first_name: Federico
  full_name: Sau, Federico
  id: E1836206-9F16-11E9-8814-AEFDE5697425
  last_name: Sau
citation:
  ama: Dello Schiavo L, Portinale L, Sau F. Scaling limits of random walks, harmonic
    profiles, and stationary nonequilibrium states in Lipschitz domains. <i>Annals
    of Applied Probability</i>. 2024;34(2):1789-1845. doi:<a href="https://doi.org/10.1214/23-AAP2007">10.1214/23-AAP2007</a>
  apa: Dello Schiavo, L., Portinale, L., &#38; Sau, F. (2024). Scaling limits of random
    walks, harmonic profiles, and stationary nonequilibrium states in Lipschitz domains.
    <i>Annals of Applied Probability</i>. Institute of Mathematical Statistics. <a
    href="https://doi.org/10.1214/23-AAP2007">https://doi.org/10.1214/23-AAP2007</a>
  chicago: Dello Schiavo, Lorenzo, Lorenzo Portinale, and Federico Sau. “Scaling Limits
    of Random Walks, Harmonic Profiles, and Stationary Nonequilibrium States in Lipschitz
    Domains.” <i>Annals of Applied Probability</i>. Institute of Mathematical Statistics,
    2024. <a href="https://doi.org/10.1214/23-AAP2007">https://doi.org/10.1214/23-AAP2007</a>.
  ieee: L. Dello Schiavo, L. Portinale, and F. Sau, “Scaling limits of random walks,
    harmonic profiles, and stationary nonequilibrium states in Lipschitz domains,”
    <i>Annals of Applied Probability</i>, vol. 34, no. 2. Institute of Mathematical
    Statistics, pp. 1789–1845, 2024.
  ista: Dello Schiavo L, Portinale L, Sau F. 2024. Scaling limits of random walks,
    harmonic profiles, and stationary nonequilibrium states in Lipschitz domains.
    Annals of Applied Probability. 34(2), 1789–1845.
  mla: Dello Schiavo, Lorenzo, et al. “Scaling Limits of Random Walks, Harmonic Profiles,
    and Stationary Nonequilibrium States in Lipschitz Domains.” <i>Annals of Applied
    Probability</i>, vol. 34, no. 2, Institute of Mathematical Statistics, 2024, pp.
    1789–845, doi:<a href="https://doi.org/10.1214/23-AAP2007">10.1214/23-AAP2007</a>.
  short: L. Dello Schiavo, L. Portinale, F. Sau, Annals of Applied Probability 34
    (2024) 1789–1845.
corr_author: '1'
date_created: 2024-04-14T22:01:02Z
date_published: 2024-04-01T00:00:00Z
date_updated: 2025-09-04T13:36:00Z
day: '01'
department:
- _id: JaMa
doi: 10.1214/23-AAP2007
ec_funded: 1
external_id:
  arxiv:
  - '2112.14196'
  isi:
  - '001198623200016'
intvolume: '        34'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2112.14196
month: '04'
oa: 1
oa_version: Preprint
page: 1789-1845
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: 3490b268-11ca-11ed-8bc3-e0ad03f48839
  grant_number: M03211
  name: Reaching consensus in heterogeneous random opinion dynamics
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 34dbf174-11ca-11ed-8bc3-afe9d43d4b9c
  grant_number: E208
  name: Configuration Spaces over Non-Smooth Spaces
- _id: 260788DE-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1245
  name: Dissipation and dispersion in nonlinear partial differential equations
publication: Annals of Applied Probability
publication_identifier:
  issn:
  - 1050-5164
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Scaling limits of random walks, harmonic profiles, and stationary nonequilibrium
  states in Lipschitz domains
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2024'
...
---
_id: '17143'
abstract:
- lang: eng
  text: "This paper deals with local criteria for the convergence to a global minimiser
    for gradient flow trajectories and their discretisations. To obtain quantitative
    estimates on the speed of convergence, we consider variations on the classical
    Kurdyka–Łojasiewicz inequality for a large class of parameter functions. Our assumptions
    are given in terms of the initial data, without any reference to an equilibrium
    point. The main results are convergence statements for gradient flow curves and
    proximal point sequences to a global minimiser, together with sharp quantitative
    estimates on the speed of convergence. These convergence results apply in the
    general setting of lower semicontinuous functionals on complete metric spaces,
    generalising recent results for smooth functionals on Rn. While the non-smooth
    setting covers very general spaces, it is also useful for (non)-smooth functionals
    on Rn.\r\n."
acknowledgement: The authors gratefully acknowledges support by the European Research
  Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement No. 716117). This research was funded in part by the Austrian Science
  Fund (FWF) project 10.55776/ESP208. This research was funded in part by the Austrian
  Science Fund (FWF) project 10.55776/F65
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Lorenzo
  full_name: Dello Schiavo, Lorenzo
  id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
  last_name: Dello Schiavo
  orcid: 0000-0002-9881-6870
- first_name: Jan
  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
- first_name: Francesco
  full_name: Pedrotti, Francesco
  id: d3ac8ac6-dc8d-11ea-abe3-e2a9628c4c3c
  last_name: Pedrotti
citation:
  ama: Dello Schiavo L, Maas J, Pedrotti F. Local conditions for global convergence
    of gradient flows and proximal point sequences in metric spaces. <i>Transactions
    of the American Mathematical Society</i>. 2024;377(6):3779-3804. doi:<a href="https://doi.org/10.1090/tran/9156">10.1090/tran/9156</a>
  apa: Dello Schiavo, L., Maas, J., &#38; Pedrotti, F. (2024). Local conditions for
    global convergence of gradient flows and proximal point sequences in metric spaces.
    <i>Transactions of the American Mathematical Society</i>. American Mathematical
    Society. <a href="https://doi.org/10.1090/tran/9156">https://doi.org/10.1090/tran/9156</a>
  chicago: Dello Schiavo, Lorenzo, Jan Maas, and Francesco Pedrotti. “Local Conditions
    for Global Convergence of Gradient Flows and Proximal Point Sequences in Metric
    Spaces.” <i>Transactions of the American Mathematical Society</i>. American Mathematical
    Society, 2024. <a href="https://doi.org/10.1090/tran/9156">https://doi.org/10.1090/tran/9156</a>.
  ieee: L. Dello Schiavo, J. Maas, and F. Pedrotti, “Local conditions for global convergence
    of gradient flows and proximal point sequences in metric spaces,” <i>Transactions
    of the American Mathematical Society</i>, vol. 377, no. 6. American Mathematical
    Society, pp. 3779–3804, 2024.
  ista: Dello Schiavo L, Maas J, Pedrotti F. 2024. Local conditions for global convergence
    of gradient flows and proximal point sequences in metric spaces. Transactions
    of the American Mathematical Society. 377(6), 3779–3804.
  mla: Dello Schiavo, Lorenzo, et al. “Local Conditions for Global Convergence of
    Gradient Flows and Proximal Point Sequences in Metric Spaces.” <i>Transactions
    of the American Mathematical Society</i>, vol. 377, no. 6, American Mathematical
    Society, 2024, pp. 3779–804, doi:<a href="https://doi.org/10.1090/tran/9156">10.1090/tran/9156</a>.
  short: L. Dello Schiavo, J. Maas, F. Pedrotti, Transactions of the American Mathematical
    Society 377 (2024) 3779–3804.
date_created: 2024-06-16T22:01:06Z
date_published: 2024-06-01T00:00:00Z
date_updated: 2026-04-07T13:00:02Z
day: '01'
department:
- _id: JaMa
doi: 10.1090/tran/9156
ec_funded: 1
external_id:
  arxiv:
  - '2304.05239'
  isi:
  - '001203273300001'
intvolume: '       377'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2304.05239
month: '06'
oa: 1
oa_version: Preprint
page: 3779-3804
project:
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 34dbf174-11ca-11ed-8bc3-afe9d43d4b9c
  grant_number: E208
  name: Configuration Spaces over Non-Smooth Spaces
publication: Transactions of the American Mathematical Society
publication_identifier:
  eissn:
  - 1088-6850
  issn:
  - 0002-9947
publication_status: published
publisher: American Mathematical Society
quality_controlled: '1'
related_material:
  record:
  - id: '17336'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Local conditions for global convergence of gradient flows and proximal point
  sequences in metric spaces
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 377
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '18490'
abstract:
- lang: eng
  text: 'For large classes of even-dimensional Riemannian manifolds (Formula presented.),
    we construct and analyze conformally invariant random fields. These centered Gaussian
    fields (Formula presented.), called co-polyharmonic Gaussian fields, are characterized
    by their covariance kernels k which exhibit a precise logarithmic divergence:
    (Formula presented.). They share a fundamental quasi-invariance property under
    conformal transformations. In terms of the co-polyharmonic Gaussian field (Formula
    presented.), we define the Liouville Quantum Gravity measure, a random measure
    on (Formula presented.), heuristically given as (Formula presented.) and rigorously
    obtained as almost sure weak limit of the right-hand side with (Formula presented.)
    replaced by suitable regular approximations (Formula presented.). In terms on
    the Liouville Quantum Gravity measure, we define the Liouville Brownian motion
    on (Formula presented.) and the random GJMS operators. Finally, we present an
    approach to a conformal field theory in arbitrary even dimension with an ansatz
    based on Branson''s (Formula presented.) -curvature: we give a rigorous meaning
    to the Polyakov–Liouville measure (Formula presented.) and we derive the corresponding
    conformal anomaly. The set of admissible manifolds is conformally invariant. It
    includes all compact 2-dimensional Riemannian manifolds, all compact non-negatively
    curved Einstein manifolds of even dimension, and large classes of compact hyperbolic
    manifolds of even dimension. However, not every compact even-dimensional Riemannian
    manifold is admissible. Our results concerning the logarithmic divergence of the
    kernel (Formula presented.) rely on new sharp estimates for heat kernels and higher
    order Green kernels on arbitrary closed manifolds. '
acknowledgement: The authors are grateful to Masha Gordina for helpful references,
  and to Nathanaël Berestycki, Baptiste Cerclé, and Ewain Gwynne for valuable comments
  on the first circulated version of this paper. They also would like to thank Sebastian
  Andres, Peter Friz, and Yizheng Yuan for pointing out an erroneous formulation in
  the previous version of Theorem 5.7. Moreover, KTS would liketo express his thanks
  to Sebastian Andres, Matthias Erbar, Martin Huesmann, and Jan Mass for stimulating
  discussions on previous attempts to this project. LDS gratefully acknowledges financial
  support from the European Research Council (grant agreement No 716117, awarded to
  J. Maas), from the Austrian Science Fund (FWF) project 10.55776/ESP208, and from
  the Austrian Science Fund (FWF) project 10.55776/F65.RH, EK, and KTS gratefully
  acknowledge funding by the Deutsche Forschungsgemeinschaft through the project “Random
  Riemannian Geometry” within the SPP 2265 “Random Geomet-ric Systems,” through the
  Hausdorff Center for Mathematics (project ID 390685813), and through project B03
  within the CRC 1060 (project ID 211504053). RH and KTS also gratefully acknowledge
  financial support from the European Research Council through the ERC AdG “RicciBounds”(grant
  agreement 694405).Data sharing not applicable to this article as no datasets were
  generated or analyzed during the current study. Open access funding enabled and
  organized by Projekt DEAL.
article_number: e70003
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Lorenzo
  full_name: Dello Schiavo, Lorenzo
  id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
  last_name: Dello Schiavo
  orcid: 0000-0002-9881-6870
- first_name: Ronan
  full_name: Herry, Ronan
  last_name: Herry
- first_name: Eva
  full_name: Kopfer, Eva
  last_name: Kopfer
- first_name: Karl Theodor
  full_name: Sturm, Karl Theodor
  last_name: Sturm
citation:
  ama: Dello Schiavo L, Herry R, Kopfer E, Sturm KT. Conformally invariant random
    fields, Liouville quantum gravity measures, and random Paneitz operators on Riemannian
    manifolds of even dimension. <i>Journal of the London Mathematical Society</i>.
    2024;110(5). doi:<a href="https://doi.org/10.1112/jlms.70003">10.1112/jlms.70003</a>
  apa: Dello Schiavo, L., Herry, R., Kopfer, E., &#38; Sturm, K. T. (2024). Conformally
    invariant random fields, Liouville quantum gravity measures, and random Paneitz
    operators on Riemannian manifolds of even dimension. <i>Journal of the London
    Mathematical Society</i>. London Mathematical Society. <a href="https://doi.org/10.1112/jlms.70003">https://doi.org/10.1112/jlms.70003</a>
  chicago: Dello Schiavo, Lorenzo, Ronan Herry, Eva Kopfer, and Karl Theodor Sturm.
    “Conformally Invariant Random Fields, Liouville Quantum Gravity Measures, and
    Random Paneitz Operators on Riemannian Manifolds of Even Dimension.” <i>Journal
    of the London Mathematical Society</i>. London Mathematical Society, 2024. <a
    href="https://doi.org/10.1112/jlms.70003">https://doi.org/10.1112/jlms.70003</a>.
  ieee: L. Dello Schiavo, R. Herry, E. Kopfer, and K. T. Sturm, “Conformally invariant
    random fields, Liouville quantum gravity measures, and random Paneitz operators
    on Riemannian manifolds of even dimension,” <i>Journal of the London Mathematical
    Society</i>, vol. 110, no. 5. London Mathematical Society, 2024.
  ista: Dello Schiavo L, Herry R, Kopfer E, Sturm KT. 2024. Conformally invariant
    random fields, Liouville quantum gravity measures, and random Paneitz operators
    on Riemannian manifolds of even dimension. Journal of the London Mathematical
    Society. 110(5), e70003.
  mla: Dello Schiavo, Lorenzo, et al. “Conformally Invariant Random Fields, Liouville
    Quantum Gravity Measures, and Random Paneitz Operators on Riemannian Manifolds
    of Even Dimension.” <i>Journal of the London Mathematical Society</i>, vol. 110,
    no. 5, e70003, London Mathematical Society, 2024, doi:<a href="https://doi.org/10.1112/jlms.70003">10.1112/jlms.70003</a>.
  short: L. Dello Schiavo, R. Herry, E. Kopfer, K.T. Sturm, Journal of the London
    Mathematical Society 110 (2024).
date_created: 2024-11-03T23:01:44Z
date_published: 2024-11-01T00:00:00Z
date_updated: 2025-09-08T14:29:45Z
day: '01'
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oa_version: Published Version
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  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: 34dbf174-11ca-11ed-8bc3-afe9d43d4b9c
  grant_number: E208
  name: Configuration Spaces over Non-Smooth Spaces
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
publication: Journal of the London Mathematical Society
publication_identifier:
  eissn:
  - 1469-7750
  issn:
  - 0024-6107
publication_status: published
publisher: London Mathematical Society
quality_controlled: '1'
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status: public
title: Conformally invariant random fields, Liouville quantum gravity measures, and
  random Paneitz operators on Riemannian manifolds of even dimension
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abstract:
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  text: 'Score-based generative models (SGMs) are powerful tools to sample from complex
    data distributions. Their underlying idea is to (i) run a forward process for
    time T1 by adding noise to the data, (ii) estimate its score function, and (iii)
    use such estimate to run a reverse process. As the reverse process is initialized
    with the stationary distribution of the forward one, the existing analysis paradigm
    requires T1→∞. This is however problematic: from a theoretical viewpoint, for
    a given precision of the score approximation, the convergence guarantee fails
    as T1 diverges; from a practical viewpoint, a large T1 increases computational
    costs and leads to error propagation. This paper addresses the issue by considering
    a version of the popular predictor-corrector scheme: after running the forward
    process, we first estimate the final distribution via an inexact Langevin dynamics
    and then revert the process. Our key technical contribution is to provide convergence
    guarantees which require to run the forward process only for a fixed finite time
    T1. Our bounds exhibit a mild logarithmic dependence on the input dimension and
    the subgaussian norm of the target distribution, have minimal assumptions on the
    data, and require only to control the L2 loss on the score approximation, which
    is the quantity minimized in practice.'
acknowledgement: "Francesco Pedrotti and Jan Maas acknowledge support by the Austrian
  Science Fund (FWF) project 10.55776/F65. Marco Mondelli acknowledges support by
  the 2019 Lopez-Loreta prize.\r\n"
alternative_title:
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author:
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  full_name: Pedrotti, Francesco
  id: d3ac8ac6-dc8d-11ea-abe3-e2a9628c4c3c
  last_name: Pedrotti
- first_name: Jan
  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
- first_name: Marco
  full_name: Mondelli, Marco
  id: 27EB676C-8706-11E9-9510-7717E6697425
  last_name: Mondelli
  orcid: 0000-0002-3242-7020
citation:
  ama: 'Pedrotti F, Maas J, Mondelli M. Improved convergence of score-based diffusion
    models via prediction-correction. In: <i>Transactions on Machine Learning Research</i>.
    ; 2024.'
  apa: Pedrotti, F., Maas, J., &#38; Mondelli, M. (2024). Improved convergence of
    score-based diffusion models via prediction-correction. In <i>Transactions on
    Machine Learning Research</i>.
  chicago: Pedrotti, Francesco, Jan Maas, and Marco Mondelli. “Improved Convergence
    of Score-Based Diffusion Models via Prediction-Correction.” In <i>Transactions
    on Machine Learning Research</i>, 2024.
  ieee: F. Pedrotti, J. Maas, and M. Mondelli, “Improved convergence of score-based
    diffusion models via prediction-correction,” in <i>Transactions on Machine Learning
    Research</i>, 2024.
  ista: Pedrotti F, Maas J, Mondelli M. 2024. Improved convergence of score-based
    diffusion models via prediction-correction. Transactions on Machine Learning Research.
    , TMLR, .
  mla: Pedrotti, Francesco, et al. “Improved Convergence of Score-Based Diffusion
    Models via Prediction-Correction.” <i>Transactions on Machine Learning Research</i>,
    2024.
  short: F. Pedrotti, J. Maas, M. Mondelli, in:, Transactions on Machine Learning
    Research, 2024.
corr_author: '1'
date_created: 2025-01-27T12:18:05Z
date_published: 2024-06-01T00:00:00Z
date_updated: 2025-04-15T08:31:35Z
day: '01'
ddc:
- '000'
department:
- _id: JaMa
- _id: MaMo
external_id:
  arxiv:
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has_accepted_license: '1'
language:
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month: '06'
oa: 1
oa_version: Published Version
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
- _id: 059876FA-7A3F-11EA-A408-12923DDC885E
  name: Prix Lopez-Loretta 2019 - Marco Mondelli
publication: Transactions on Machine Learning Research
publication_identifier:
  issn:
  - 2835-8856
publication_status: published
quality_controlled: '1'
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title: Improved convergence of score-based diffusion models via prediction-correction
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  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '17282'
abstract:
- lang: eng
  text: Let  X  be a vector field and  Y  be a co-vector field on a smooth manifold  M.
    Does there exist a smooth Riemannian metric  gαβ  on  M  such that  Yβ=gαβXα ?
    The main result of this note gives necessary and sufficient conditions for this
    to be true. As an application of this result we show that a finite-dimensional
    ergodic Lindblad equation admits a gradient flow structure for the von Neumann
    relative entropy if and only if the condition of BKM-detailed balance holds.
acknowledgement: Open access funding provided by Institute of Science and Technology
  (IST Austria).J. M. gratefully acknowledges support by the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement No 716117), and by the Austrian Science Fund (FWF), Project SFB
  F65. We thank the anonymous referee for valuable comments on the paper.
article_number: '153'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Morris
  full_name: Brooks, Morris
  id: B7ECF9FC-AA38-11E9-AC9A-0930E6697425
  last_name: Brooks
  orcid: 0000-0002-6249-0928
- first_name: Jan
  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
citation:
  ama: Brooks M, Maas J. Characterisation of gradient flows for a given functional.
    <i>Calculus of Variations and Partial Differential Equations</i>. 2024;63(6).
    doi:<a href="https://doi.org/10.1007/s00526-024-02755-z">10.1007/s00526-024-02755-z</a>
  apa: Brooks, M., &#38; Maas, J. (2024). Characterisation of gradient flows for a
    given functional. <i>Calculus of Variations and Partial Differential Equations</i>.
    Springer Nature. <a href="https://doi.org/10.1007/s00526-024-02755-z">https://doi.org/10.1007/s00526-024-02755-z</a>
  chicago: Brooks, Morris, and Jan Maas. “Characterisation of Gradient Flows for a
    given Functional.” <i>Calculus of Variations and Partial Differential Equations</i>.
    Springer Nature, 2024. <a href="https://doi.org/10.1007/s00526-024-02755-z">https://doi.org/10.1007/s00526-024-02755-z</a>.
  ieee: M. Brooks and J. Maas, “Characterisation of gradient flows for a given functional,”
    <i>Calculus of Variations and Partial Differential Equations</i>, vol. 63, no.
    6. Springer Nature, 2024.
  ista: Brooks M, Maas J. 2024. Characterisation of gradient flows for a given functional.
    Calculus of Variations and Partial Differential Equations. 63(6), 153.
  mla: Brooks, Morris, and Jan Maas. “Characterisation of Gradient Flows for a given
    Functional.” <i>Calculus of Variations and Partial Differential Equations</i>,
    vol. 63, no. 6, 153, Springer Nature, 2024, doi:<a href="https://doi.org/10.1007/s00526-024-02755-z">10.1007/s00526-024-02755-z</a>.
  short: M. Brooks, J. Maas, Calculus of Variations and Partial Differential Equations
    63 (2024).
corr_author: '1'
date_created: 2024-07-21T22:01:01Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2025-09-08T08:24:51Z
day: '01'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1007/s00526-024-02755-z
ec_funded: 1
external_id:
  arxiv:
  - '2209.11149'
  isi:
  - '001258097800003'
  pmid:
  - '38947856'
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  file_size: 416622
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issue: '6'
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month: '07'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 256E75B8-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
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'
scopus_import: '1'
status: public
title: Characterisation of gradient flows for a given functional
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...
---
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abstract:
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  text: "This thesis deals with the study of stochastic processes and their ergodicity
    properties. The\r\nvariety of problems encountered calls for a set of different
    approaches, ranging from classical to\r\nmodern ones: a special place is held
    by probabilistic methods based on couplings, by functional\r\ninequalities, and
    by the theory of gradient flows in the space of measures.\r\n\r\nThe material
    is organized as follows. Chapter 1 contains the introduction to this thesis, starting\r\nwith
    a general presentation of some of the relevant topics. Section 1.1 is dedicated
    to the\r\ntheory of gradient flows in metric spaces, and introduces the first
    contribution of this thesis\r\n[DSMP24], which is presented in detail in Chapter
    2. Section 1.2 moves to the topic of\r\ncurvature of Markov chains, concluding
    with a brief description of our second contribution\r\n[Ped23], which is included
    in Chapter 3. Section 1.3 discusses applications of stochastic\r\nprocesses to
    the theory of sampling, in particular the recent framework of score-based diffusion\r\nmodels,
    and our contribution [PMM24], which is contained in Chapter 4. Section 1.4 discusses\r\nsome
    related problems, concerning the regularization properties of the heat flow. It
    serves\r\nas a motivation for the work [BP24], which we report in Chapter 5. Finally,
    Section 1.5\r\ndiscusses the last contribution of this thesis, which can be found
    in Chapter 6. It deals with\r\nthe convergence to equilibrium of a particular
    stochastic model from quantitative genetics:\r\nthis is established via some functional
    inequalities, which we prove with probabilistic arguments\r\nbased on couplings.\r\n"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Francesco
  full_name: Pedrotti, Francesco
  id: d3ac8ac6-dc8d-11ea-abe3-e2a9628c4c3c
  last_name: Pedrotti
citation:
  ama: Pedrotti F. Functional inequalities and convergence of stochastic processes.
    2024. doi:<a href="https://doi.org/10.15479/at:ista:17336">10.15479/at:ista:17336</a>
  apa: Pedrotti, F. (2024). <i>Functional inequalities and convergence of stochastic
    processes</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:17336">https://doi.org/10.15479/at:ista:17336</a>
  chicago: Pedrotti, Francesco. “Functional Inequalities and Convergence of Stochastic
    Processes.” Institute of Science and Technology Austria, 2024. <a href="https://doi.org/10.15479/at:ista:17336">https://doi.org/10.15479/at:ista:17336</a>.
  ieee: F. Pedrotti, “Functional inequalities and convergence of stochastic processes,”
    Institute of Science and Technology Austria, 2024.
  ista: Pedrotti F. 2024. Functional inequalities and convergence of stochastic processes.
    Institute of Science and Technology Austria.
  mla: Pedrotti, Francesco. <i>Functional Inequalities and Convergence of Stochastic
    Processes</i>. Institute of Science and Technology Austria, 2024, doi:<a href="https://doi.org/10.15479/at:ista:17336">10.15479/at:ista:17336</a>.
  short: F. Pedrotti, Functional Inequalities and Convergence of Stochastic Processes,
    Institute of Science and Technology Austria, 2024.
corr_author: '1'
date_created: 2024-07-29T09:14:14Z
date_published: 2024-07-31T00:00:00Z
date_updated: 2026-04-07T13:00:03Z
day: '31'
ddc:
- '500'
- '510'
- '515'
- '519'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JaMa
doi: 10.15479/at:ista:17336
ec_funded: 1
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month: '07'
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oa_version: Published Version
page: '183'
project:
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  call_identifier: H2020
  grant_number: '716117'
  name: Optimal Transport and Stochastic Dynamics
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
  grant_number: F6504
  name: Taming Complexity in Partial Differential Systems
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  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
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supervisor:
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  full_name: Maas, Jan
  id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
  last_name: Maas
  orcid: 0000-0002-0845-1338
title: Functional inequalities and convergence of stochastic processes
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  short: CC BY-NC-ND (4.0)
type: dissertation
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