---
OA_place: publisher
OA_type: hybrid
_id: '10045'
abstract:
- lang: eng
  text: "Given a fixed finite metric space (V,μ), the {\\em minimum 0-extension problem},
    denoted as 0-Ext[μ], is equivalent to the following optimization problem: minimize
    function of the form minx∈Vn∑ifi(xi)+∑ijcijμ(xi,xj) where cij,cvi are given nonnegative
    costs and fi:V→R are functions given by fi(xi)=∑v∈Vcviμ(xi,v). The computational
    complexity of 0-Ext[μ] has been recently established by Karzanov and by Hirai:
    if metric μ is {\\em orientable modular} then 0-Ext[μ] can be solved in polynomial
    time, otherwise 0-Ext[μ] is NP-hard. To prove the tractability part, Hirai developed
    a theory of discrete convex functions on orientable modular graphs generalizing
    several known classes of functions in discrete convex analysis, such as L♮-convex
    functions. We consider a more general version of the problem in which unary functions
    fi(xi) can additionally have terms of the form cuv;iμ(xi,{u,v}) for {u,v}∈F, where
    set F⊆(V2) is fixed. We extend the complexity classification above by providing
    an explicit condition on (μ,F) for the problem to be tractable. In order to prove
    the tractability part, we generalize Hirai's theory and define a larger class
    of discrete convex functions. It covers, in particular, another well-known class
    of functions, namely submodular functions on an integer lattice. Finally, we improve
    the complexity of Hirai's algorithm for solving 0-Ext on orientable modular graphs.\r\n"
acknowledgement: We thank the anonymous reviewers for their careful reading of our
  manuscript and their many insightful comments and suggestions. Open access funding
  provided by Institute of Science and Technology (IST Austria).
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Martin
  full_name: Dvorak, Martin
  id: 40ED02A8-C8B4-11E9-A9C0-453BE6697425
  last_name: Dvorak
  orcid: 0000-0001-5293-214X
- first_name: Vladimir
  full_name: Kolmogorov, Vladimir
  id: 3D50B0BA-F248-11E8-B48F-1D18A9856A87
  last_name: Kolmogorov
citation:
  ama: Dvorak M, Kolmogorov V. Generalized minimum 0-extension problem and discrete
    convexity. <i>Mathematical Programming</i>. 2025;209:279-322. doi:<a href="https://doi.org/10.1007/s10107-024-02064-5">10.1007/s10107-024-02064-5</a>
  apa: Dvorak, M., &#38; Kolmogorov, V. (2025). Generalized minimum 0-extension problem
    and discrete convexity. <i>Mathematical Programming</i>. Springer Nature. <a href="https://doi.org/10.1007/s10107-024-02064-5">https://doi.org/10.1007/s10107-024-02064-5</a>
  chicago: Dvorak, Martin, and Vladimir Kolmogorov. “Generalized Minimum 0-Extension
    Problem and Discrete Convexity.” <i>Mathematical Programming</i>. Springer Nature,
    2025. <a href="https://doi.org/10.1007/s10107-024-02064-5">https://doi.org/10.1007/s10107-024-02064-5</a>.
  ieee: M. Dvorak and V. Kolmogorov, “Generalized minimum 0-extension problem and
    discrete convexity,” <i>Mathematical Programming</i>, vol. 209. Springer Nature,
    pp. 279–322, 2025.
  ista: Dvorak M, Kolmogorov V. 2025. Generalized minimum 0-extension problem and
    discrete convexity. Mathematical Programming. 209, 279–322.
  mla: Dvorak, Martin, and Vladimir Kolmogorov. “Generalized Minimum 0-Extension Problem
    and Discrete Convexity.” <i>Mathematical Programming</i>, vol. 209, Springer Nature,
    2025, pp. 279–322, doi:<a href="https://doi.org/10.1007/s10107-024-02064-5">10.1007/s10107-024-02064-5</a>.
  short: M. Dvorak, V. Kolmogorov, Mathematical Programming 209 (2025) 279–322.
corr_author: '1'
date_created: 2021-09-27T10:48:23Z
date_published: 2025-01-01T00:00:00Z
date_updated: 2025-05-19T13:52:10Z
day: '01'
ddc:
- '004'
department:
- _id: GradSch
- _id: VlKo
doi: 10.1007/s10107-024-02064-5
external_id:
  arxiv:
  - '2109.10203'
  isi:
  - '001176563300001'
file:
- access_level: open_access
  checksum: 25d9bd490719b45eca84f4d93a06c69f
  content_type: application/pdf
  creator: dernst
  date_created: 2025-04-16T09:36:08Z
  date_updated: 2025-04-16T09:36:08Z
  file_id: '19578'
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  file_size: 839510
  relation: main_file
  success: 1
file_date_updated: 2025-04-16T09:36:08Z
has_accepted_license: '1'
intvolume: '       209'
isi: 1
keyword:
- minimum 0-extension problem
- metric labeling problem
- discrete metric spaces
- metric extensions
- computational complexity
- valued constraint satisfaction problems
- discrete convex analysis
- L-convex functions
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '01'
oa: 1
oa_version: Published Version
page: 279-322
publication: Mathematical Programming
publication_identifier:
  eissn:
  - 1436-4646
  issn:
  - 0025-5610
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Generalized minimum 0-extension problem and discrete convexity
tmp:
  image: /images/cc_by.png
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  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 209
year: '2025'
...
---
OA_place: publisher
_id: '18979'
abstract:
- lang: eng
  text: "Topological Data Analysis (TDA) is a discipline utilizing the mathematical
    field of topology to study data, most prominently collections of point sets. This
    thesis summarizes three projects related to computations in TDA.\r\n\r\nThe first
    one establishes a variant of TDA for chromatic point sets, where each point is
    given a color. For example, we are given positions of cells within a tumor microenvironment,
    and color the cancerous cells red, and the immune cells blue.\r\n\r\nThe aim is
    then to give a quantitative description of how the two or more sets of points
    spatially interact. Building on image, kernel and cokernel variants of persistent
    homology, we suggest six-packs of persistent diagrams as such a descriptor.\r\n\r\nWe
    describe a construction of a chromatic alpha complex, which enables  efficient
    computation of several variants of the six-packs. We give topological descriptions
    of natural subcomplexes of the chromatic alpha complex, and show that the radii
    of the simplices form a discrete Morse function. Finally, we provide an implementation
    of the presented chromatic TDA pipeline.\r\n\r\nThe second part aims to translate
    a powerful tool of sheaf theory to elementary terms using labeled matrices. The
    goal is to enable their use in computational settings. We show that derived categories
    of sheaves over finite posets have, up to isomorphism, unique objects---minimal
    injective resolutions---and give a concrete algorithm to compute them. We further
    describe simple algorithms to compute derived pushforwards and pullbacks for monotonic
    maps, and their proper variants for inclusions, and demonstrate their tractability
    by providing an implementation. Finally, we suggest a discrete definition of microsupport
    and show desirable properties inspired by discrete Morse theory.\r\n\r\nIn the
    last part, we present a collection of observations about collapses. We give a
    characterization of collapsibility in terms of unitriangular submatrices of the
    boundary matrix, a cotree-tree decomposition, and the optimal solution to a variant
    of the Procrustes problem. We establish relation between dual collapses and relative
    Morse theory and pose several open questions. Finally, focusing on complexes embedded
    in the three-dimensional Euclidean space, we describe a relation between the collapsibility
    and the triviality of a polygonal knot."
acknowledgement: "The research presented in this thesis was funded with the Wittgenstein
  Prize,\r\nAustrian Science Fund (FWF), grant no. Z 342-N31, and from the DFG Collaborative
  Research\r\nCenter TRR 109, ‘Discretization in Geometry and Dynamics’, Austrian
  Science Fund (FWF),\r\ngrant no. I 02979-N35.\r\n"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Ondrej
  full_name: Draganov, Ondrej
  id: 2B23F01E-F248-11E8-B48F-1D18A9856A87
  last_name: Draganov
  orcid: 0000-0003-0464-3823
citation:
  ama: Draganov O. Structures and computations in topological data analysis. 2025.
    doi:<a href="https://doi.org/10.15479/at:ista:18979">10.15479/at:ista:18979</a>
  apa: Draganov, O. (2025). <i>Structures and computations in topological data analysis</i>.
    Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:18979">https://doi.org/10.15479/at:ista:18979</a>
  chicago: Draganov, Ondrej. “Structures and Computations in Topological Data Analysis.”
    Institute of Science and Technology Austria, 2025. <a href="https://doi.org/10.15479/at:ista:18979">https://doi.org/10.15479/at:ista:18979</a>.
  ieee: O. Draganov, “Structures and computations in topological data analysis,” Institute
    of Science and Technology Austria, 2025.
  ista: Draganov O. 2025. Structures and computations in topological data analysis.
    Institute of Science and Technology Austria.
  mla: Draganov, Ondrej. <i>Structures and Computations in Topological Data Analysis</i>.
    Institute of Science and Technology Austria, 2025, doi:<a href="https://doi.org/10.15479/at:ista:18979">10.15479/at:ista:18979</a>.
  short: O. Draganov, Structures and Computations in Topological Data Analysis, Institute
    of Science and Technology Austria, 2025.
corr_author: '1'
date_created: 2025-01-31T17:04:40Z
date_published: 2025-02-03T00:00:00Z
date_updated: 2026-04-07T11:47:30Z
day: '03'
ddc:
- '514'
- '004'
degree_awarded: PhD
department:
- _id: GradSch
- _id: HeEd
doi: 10.15479/at:ista:18979
file:
- access_level: closed
  checksum: af6567e5d35e5eb330b8925ae37f1998
  content_type: application/zip
  creator: odragano
  date_created: 2025-01-31T16:58:30Z
  date_updated: 2025-01-31T16:58:30Z
  file_id: '18983'
  file_name: Thesis.zip
  file_size: 11899491
  relation: source_file
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  checksum: c3fef68e35b9dc2020b2ca6006da6343
  content_type: application/pdf
  creator: odragano
  date_created: 2025-02-04T16:22:07Z
  date_updated: 2025-02-04T16:22:07Z
  file_id: '19000'
  file_name: Thesis.pdf
  file_size: 8857514
  relation: main_file
file_date_updated: 2025-02-04T16:22:07Z
has_accepted_license: '1'
keyword:
- topological data analysis
- chromatic point set
- alpha complex
- persistent homology
- six pack
- sheaf
- microlocal discrete Morse
- injective resolution
- collapse
- knot
- discrete Morse theory
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '140'
project:
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I02979-N35
  name: Persistence and stability of geometric complexes
- _id: 268116B8-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00342
  name: Mathematics, Computer Science
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '15091'
    relation: part_of_dissertation
    status: public
  - id: '18981'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
title: Structures and computations in topological data analysis
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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  short: CC BY (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2025'
...
---
OA_place: publisher
_id: '18667'
abstract:
- lang: eng
  text: "Many chemical and physical properties of materials are determined by the
    material’s shape,\r\nfor example the size of its pores and the width of its tunnels.
    This makes materials science\r\na prime application area for geometrical and topological
    methods. Nevertheless many\r\nmethods in topological data analysis have not been
    satisfyingly extended to the needs of\r\nmaterials science. This thesis provides
    new methods and new mathematical theorems\r\ntargeted at those specific needs
    by answering four different research questions. While the\r\nmotivation for each
    of the research questions arises from materials science, the methods\r\nare versatile
    and can be applied in different areas as well. \r\n\r\nThe first research question
    is concerned with image data, for example a three-dimensional\r\ncomputed tomography
    (CT) scan of a material, like sand or stone. There are two commonly\r\nused topologies
    for digital images and depending on the application either of them might be\r\nrequired.
    However, software for computing the topological data analysis method persistence\r\nhomology,
    usually supports only one of the two topologies. We answer the question how to\r\ncompute
    persistent homology of an image with respect to one of the two topologies using\r\nsoftware
    that is intended for the other topology. \r\n\r\nThe second research question
    is concerned with image data as well, and asks how much\r\nof the topological
    information of an image is lost when the resolution is coarsened. As\r\ncomputer
    tomography scanners are more expensive the higher the resolution, it is an\r\nimportant
    question in materials science to know which resolution is enough to get satisfying\r\npersistent
    homology. We give theoretical bounds on the information loss based on different\r\ngeometrical
    properties of the object to be scanned. In addition, we conduct experiments on\r\nsand
    and stone CT image data. \r\n\r\nThe third research question is motivated by comparing
    crystalline materials efficiently. As\r\nthe atoms within a crystal repeat periodically,
    crystalline materials are either modeled by\r\nunmanageable infinite periodic
    point sets, or by one of their fundamental domains, which is\r\nunstable under
    perturbation. Therefore a fingerprint of crystalline materials is needed, with\r\nappropriate
    properties such that comparing the crystals can be eased by comparing the\r\nfingerprints
    instead. We define the density fingerprint and prove the necessary properties.
    \r\n\r\nThe fourth research question is motivated by studying the hole-structure
    or connectedness,\r\ni.e. persistent homology or merge trees, of crystalline materials.
    A common way to deal\r\nwith periodicity is to take a fundamental domain and identify
    opposite boundaries to form a\r\ntorus. However, computing persistent homology
    or merge trees on that torus loses some\r\nof the information materials scientists
    are interested in and is additionally not stable under\r\ncertain noise. We therefore
    decorate the merge tree stemming from the torus with additional\r\ninformation
    describing the density and growth rate of the periodic copies of a component\r\nwithin
    a growing spherical window. We prove all desired properties, like stability and
    efficient\r\ncomputability."
acknowledgement: "I was supported by the European Research Council (ERC) Horizon 2020
  project\r\n“Alpha Shape Theory Extended” No. 788183 and by the Pöttinger Scholarship.
  In addition,\r\nI am very thankful for having been able to attend the second Workshop
  for Women in\r\nComputational Topology in July 2019, funded by the Mathematical
  Sciences Institute at\r\nANU, the US National Science Foundation through the award
  CCF-1841455, the Australian\r\nMathematical Sciences Institute and the Association
  for Women in Mathematics. Two of the\r\nprojects presented in this thesis started
  there. One of them reached completion thanks to\r\nfunding from the MSRI Summer
  Research in Mathematics program awarded to me and my\r\ncollaborators in 2020."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Teresa
  full_name: Heiss, Teresa
  id: 4879BB4E-F248-11E8-B48F-1D18A9856A87
  last_name: Heiss
  orcid: 0000-0002-1780-2689
citation:
  ama: Heiss T. New methods for applying topological data analysis to materials science.
    2024. doi:<a href="https://doi.org/10.15479/at:ista:18667">10.15479/at:ista:18667</a>
  apa: Heiss, T. (2024). <i>New methods for applying topological data analysis to
    materials science</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:18667">https://doi.org/10.15479/at:ista:18667</a>
  chicago: Heiss, Teresa. “New Methods for Applying Topological Data Analysis to Materials
    Science.” Institute of Science and Technology Austria, 2024. <a href="https://doi.org/10.15479/at:ista:18667">https://doi.org/10.15479/at:ista:18667</a>.
  ieee: T. Heiss, “New methods for applying topological data analysis to materials
    science,” Institute of Science and Technology Austria, 2024.
  ista: Heiss T. 2024. New methods for applying topological data analysis to materials
    science. Institute of Science and Technology Austria.
  mla: Heiss, Teresa. <i>New Methods for Applying Topological Data Analysis to Materials
    Science</i>. Institute of Science and Technology Austria, 2024, doi:<a href="https://doi.org/10.15479/at:ista:18667">10.15479/at:ista:18667</a>.
  short: T. Heiss, New Methods for Applying Topological Data Analysis to Materials
    Science, Institute of Science and Technology Austria, 2024.
corr_author: '1'
date_created: 2024-12-17T16:17:55Z
date_published: 2024-12-17T00:00:00Z
date_updated: 2026-04-07T12:54:10Z
day: '17'
ddc:
- '514'
- '516'
- '004'
degree_awarded: PhD
department:
- _id: GradSch
- _id: HeEd
doi: 10.15479/at:ista:18667
ec_funded: 1
file:
- access_level: open_access
  checksum: 247bb057aed2fba1cd4711917aaa2d77
  content_type: application/pdf
  creator: theiss
  date_created: 2024-12-19T10:24:46Z
  date_updated: 2024-12-19T10:24:46Z
  file_id: '18686'
  file_name: Teresa_Heiss_PhD_Thesis_final.pdf
  file_size: 7752253
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  success: 1
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  checksum: 9648b45c07a008ee11a07f99856a139d
  content_type: application/zip
  creator: theiss
  date_created: 2024-12-19T10:24:50Z
  date_updated: 2024-12-19T10:24:50Z
  file_id: '18687'
  file_name: PhD_Thesis.zip
  file_size: 17197731
  relation: source_file
file_date_updated: 2024-12-19T10:24:50Z
has_accepted_license: '1'
keyword:
- persistent homology
- topological data analysis
- periodic
- crystalline materials
- images
- fingerprint
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: '111'
project:
- _id: 266A2E9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '788183'
  name: Alpha Shape Theory Extended
publication_identifier:
  isbn:
  - 978-3-99078-052-7
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '10828'
    relation: part_of_dissertation
    status: public
  - id: '11440'
    relation: part_of_dissertation
    status: public
  - id: '18673'
    relation: part_of_dissertation
    status: public
  - id: '9345'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
title: New methods for applying topological data analysis to materials science
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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  short: CC BY (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2024'
...
---
_id: '14499'
abstract:
- lang: eng
  text: "An n-vertex graph is called C-Ramsey if it has no clique or independent set
    of size Clog2n (i.e., if it has near-optimal Ramsey behavior). In this paper,
    we study edge statistics in Ramsey graphs, in particular obtaining very precise
    control of the distribution of the number of edges in a random vertex subset of
    a C-Ramsey graph. This brings together two ongoing lines of research: the study
    of ‘random-like’ properties of Ramsey graphs and the study of small-ball probability
    for low-degree polynomials of independent random variables.\r\n\r\nThe proof proceeds
    via an ‘additive structure’ dichotomy on the degree sequence and involves a wide
    range of different tools from Fourier analysis, random matrix theory, the theory
    of Boolean functions, probabilistic combinatorics and low-rank approximation.
    In particular, a key ingredient is a new sharpened version of the quadratic Carbery–Wright
    theorem on small-ball probability for polynomials of Gaussians, which we believe
    is of independent interest. One of the consequences of our result is the resolution
    of an old conjecture of Erdős and McKay, for which Erdős reiterated in several
    of his open problem collections and for which he offered one of his notorious
    monetary prizes."
acknowledgement: Kwan was supported for part of this work by ERC Starting Grant ‘RANDSTRUCT’
  No. 101076777. Sah and Sawhney were supported by NSF Graduate Research Fellowship
  Program DGE-2141064. Sah was supported by the PD Soros Fellowship. Sauermann was
  supported by NSF Award DMS-2100157, and for part of this work by a Sloan Research
  Fellowship.
article_number: e21
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Matthew Alan
  full_name: Kwan, Matthew Alan
  id: 5fca0887-a1db-11eb-95d1-ca9d5e0453b3
  last_name: Kwan
  orcid: 0000-0002-4003-7567
- first_name: Ashwin
  full_name: Sah, Ashwin
  last_name: Sah
- first_name: Lisa
  full_name: Sauermann, Lisa
  last_name: Sauermann
- first_name: Mehtaab
  full_name: Sawhney, Mehtaab
  last_name: Sawhney
citation:
  ama: Kwan MA, Sah A, Sauermann L, Sawhney M. Anticoncentration in Ramsey graphs
    and a proof of the Erdős–McKay conjecture. <i>Forum of Mathematics, Pi</i>. 2023;11.
    doi:<a href="https://doi.org/10.1017/fmp.2023.17">10.1017/fmp.2023.17</a>
  apa: Kwan, M. A., Sah, A., Sauermann, L., &#38; Sawhney, M. (2023). Anticoncentration
    in Ramsey graphs and a proof of the Erdős–McKay conjecture. <i>Forum of Mathematics,
    Pi</i>. Cambridge University Press. <a href="https://doi.org/10.1017/fmp.2023.17">https://doi.org/10.1017/fmp.2023.17</a>
  chicago: Kwan, Matthew Alan, Ashwin Sah, Lisa Sauermann, and Mehtaab Sawhney. “Anticoncentration
    in Ramsey Graphs and a Proof of the Erdős–McKay Conjecture.” <i>Forum of Mathematics,
    Pi</i>. Cambridge University Press, 2023. <a href="https://doi.org/10.1017/fmp.2023.17">https://doi.org/10.1017/fmp.2023.17</a>.
  ieee: M. A. Kwan, A. Sah, L. Sauermann, and M. Sawhney, “Anticoncentration in Ramsey
    graphs and a proof of the Erdős–McKay conjecture,” <i>Forum of Mathematics, Pi</i>,
    vol. 11. Cambridge University Press, 2023.
  ista: Kwan MA, Sah A, Sauermann L, Sawhney M. 2023. Anticoncentration in Ramsey
    graphs and a proof of the Erdős–McKay conjecture. Forum of Mathematics, Pi. 11,
    e21.
  mla: Kwan, Matthew Alan, et al. “Anticoncentration in Ramsey Graphs and a Proof
    of the Erdős–McKay Conjecture.” <i>Forum of Mathematics, Pi</i>, vol. 11, e21,
    Cambridge University Press, 2023, doi:<a href="https://doi.org/10.1017/fmp.2023.17">10.1017/fmp.2023.17</a>.
  short: M.A. Kwan, A. Sah, L. Sauermann, M. Sawhney, Forum of Mathematics, Pi 11
    (2023).
corr_author: '1'
date_created: 2023-11-07T09:02:48Z
date_published: 2023-08-24T00:00:00Z
date_updated: 2025-09-09T13:16:15Z
day: '24'
ddc:
- '510'
department:
- _id: MaKw
doi: 10.1017/fmp.2023.17
external_id:
  arxiv:
  - '2208.02874'
  isi:
  - '001123866200001'
file:
- access_level: open_access
  checksum: 54b824098d59073cc87a308d458b0a3e
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  date_created: 2023-11-07T09:16:23Z
  date_updated: 2023-11-07T09:16:23Z
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  file_size: 1218719
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file_date_updated: 2023-11-07T09:16:23Z
has_accepted_license: '1'
intvolume: '        11'
isi: 1
keyword:
- Discrete Mathematics and Combinatorics
- Geometry and Topology
- Mathematical Physics
- Statistics and Probability
- Algebra and Number Theory
- Analysis
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: bd95085b-d553-11ed-ba76-e55d3349be45
  grant_number: '101076777'
  name: Randomness and structure in combinatorics
publication: Forum of Mathematics, Pi
publication_identifier:
  issn:
  - 2050-5086
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Anticoncentration in Ramsey graphs and a proof of the Erdős–McKay conjecture
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: 11
year: '2023'
...
---
_id: '14772'
abstract:
- lang: eng
  text: "Many coupled evolution equations can be described via 2×2-block operator
    matrices of the form A=[ \r\nA\tB\r\nC\tD\r\n ] in a product space X=X1×X2 with
    possibly unbounded entries. Here, the case of diagonally dominant block operator
    matrices is considered, that is, the case where the full operator A can be seen
    as a relatively bounded perturbation of its diagonal part with D(A)=D(A)×D(D)
    though with possibly large relative bound. For such operators the properties of
    sectoriality, R-sectoriality and the boundedness of the H∞-calculus are studied,
    and for these properties perturbation results for possibly large but structured
    perturbations are derived. Thereby, the time dependent parabolic problem associated
    with A can be analyzed in maximal Lpt\r\n-regularity spaces, and this is applied
    to a wide range of problems such as different theories for liquid crystals, an
    artificial Stokes system, strongly damped wave and plate equations, and a Keller-Segel
    model."
acknowledgement: "We would like to thank Tim Binz, Emiel Lorist and Mark Veraar for
  valuable discussions. We also thank the anonymous referees for their helpful comments
  and suggestions, and for the very accurate reading of the manuscript.\r\nThe first
  author has been supported partially by the Nachwuchsring – Network for the promotion
  of young scientists – at TU Kaiserslautern. Both authors have been supported by
  MathApp – Mathematics Applied to Real-World Problems - part of the Research Initiative
  of the Federal State of Rhineland-Palatinate, Germany."
article_number: '110146'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Antonio
  full_name: Agresti, Antonio
  id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
  last_name: Agresti
  orcid: 0000-0002-9573-2962
- first_name: Amru
  full_name: Hussein, Amru
  last_name: Hussein
citation:
  ama: Agresti A, Hussein A. Maximal Lp-regularity and H∞-calculus for block operator
    matrices and applications. <i>Journal of Functional Analysis</i>. 2023;285(11).
    doi:<a href="https://doi.org/10.1016/j.jfa.2023.110146">10.1016/j.jfa.2023.110146</a>
  apa: Agresti, A., &#38; Hussein, A. (2023). Maximal Lp-regularity and H∞-calculus
    for block operator matrices and applications. <i>Journal of Functional Analysis</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.jfa.2023.110146">https://doi.org/10.1016/j.jfa.2023.110146</a>
  chicago: Agresti, Antonio, and Amru Hussein. “Maximal Lp-Regularity and H∞-Calculus
    for Block Operator Matrices and Applications.” <i>Journal of Functional Analysis</i>.
    Elsevier, 2023. <a href="https://doi.org/10.1016/j.jfa.2023.110146">https://doi.org/10.1016/j.jfa.2023.110146</a>.
  ieee: A. Agresti and A. Hussein, “Maximal Lp-regularity and H∞-calculus for block
    operator matrices and applications,” <i>Journal of Functional Analysis</i>, vol.
    285, no. 11. Elsevier, 2023.
  ista: Agresti A, Hussein A. 2023. Maximal Lp-regularity and H∞-calculus for block
    operator matrices and applications. Journal of Functional Analysis. 285(11), 110146.
  mla: Agresti, Antonio, and Amru Hussein. “Maximal Lp-Regularity and H∞-Calculus
    for Block Operator Matrices and Applications.” <i>Journal of Functional Analysis</i>,
    vol. 285, no. 11, 110146, Elsevier, 2023, doi:<a href="https://doi.org/10.1016/j.jfa.2023.110146">10.1016/j.jfa.2023.110146</a>.
  short: A. Agresti, A. Hussein, Journal of Functional Analysis 285 (2023).
corr_author: '1'
date_created: 2024-01-10T09:15:18Z
date_published: 2023-12-01T00:00:00Z
date_updated: 2024-10-09T21:07:48Z
day: '01'
ddc:
- '510'
department:
- _id: JuFi
doi: 10.1016/j.jfa.2023.110146
external_id:
  arxiv:
  - '2108.01962'
  isi:
  - '001081809000001'
file:
- access_level: open_access
  checksum: eda98ca2aa73da91bd074baed34c2b3c
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  creator: dernst
  date_created: 2024-01-10T11:23:57Z
  date_updated: 2024-01-10T11:23:57Z
  file_id: '14789'
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  file_size: 1120592
  relation: main_file
  success: 1
file_date_updated: 2024-01-10T11:23:57Z
has_accepted_license: '1'
intvolume: '       285'
isi: 1
issue: '11'
keyword:
- Analysis
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
publication: Journal of Functional Analysis
publication_identifier:
  issn:
  - 0022-1236
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Maximal Lp-regularity and H∞-calculus for block operator matrices and applications
tmp:
  image: /images/cc_by.png
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  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: 285
year: '2023'
...
---
_id: '11556'
abstract:
- lang: eng
  text: "We revisit two basic Direct Simulation Monte Carlo Methods to model aggregation
    kinetics and extend them for aggregation processes with collisional fragmentation
    (shattering). We test the performance and accuracy of the extended methods and
    compare their performance with efficient deterministic finite-difference method
    applied to the same model. We validate the stochastic methods on the test problems
    and apply them to verify the existence of oscillating regimes in the aggregation-fragmentation
    kinetics recently detected in deterministic simulations. We confirm the emergence
    of steady oscillations of densities in such systems and prove the stability of
    the\r\noscillations with respect to fluctuations and noise."
acknowledgement: Zhores supercomputer of Skolkovo Institute of Science and Technology
  [68] has been used in the present research. S.A.M. was supported by Moscow Center
  for Fundamental and Applied Mathematics (the agreement with the Ministry of Education
  and Science of the Russian Federation No. 075-15-2019-1624). A.I.O. acknowledges
  RFBR project No. 20-31-90022. N.V.B. acknowledges the support of the Analytical
  Center (subsidy agreement 000000D730321P5Q0002, Grant No. 70-2021-00145 02.11.2021).
article_number: '111439'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Aleksei
  full_name: Kalinov, Aleksei
  id: 44b7120e-eb97-11eb-a6c2-e1557aa81d02
  last_name: Kalinov
  orcid: 0000-0003-2189-3904
- first_name: A.I.
  full_name: Osinskiy, A.I.
  last_name: Osinskiy
- first_name: S.A.
  full_name: Matveev, S.A.
  last_name: Matveev
- first_name: W.
  full_name: Otieno, W.
  last_name: Otieno
- first_name: N.V.
  full_name: Brilliantov, N.V.
  last_name: Brilliantov
citation:
  ama: Kalinov A, Osinskiy AI, Matveev SA, Otieno W, Brilliantov NV. Direct simulation
    Monte Carlo for new regimes in aggregation-fragmentation kinetics. <i>Journal
    of Computational Physics</i>. 2022;467. doi:<a href="https://doi.org/10.1016/j.jcp.2022.111439">10.1016/j.jcp.2022.111439</a>
  apa: Kalinov, A., Osinskiy, A. I., Matveev, S. A., Otieno, W., &#38; Brilliantov,
    N. V. (2022). Direct simulation Monte Carlo for new regimes in aggregation-fragmentation
    kinetics. <i>Journal of Computational Physics</i>. Elsevier. <a href="https://doi.org/10.1016/j.jcp.2022.111439">https://doi.org/10.1016/j.jcp.2022.111439</a>
  chicago: Kalinov, Aleksei, A.I. Osinskiy, S.A. Matveev, W. Otieno, and N.V. Brilliantov.
    “Direct Simulation Monte Carlo for New Regimes in Aggregation-Fragmentation Kinetics.”
    <i>Journal of Computational Physics</i>. Elsevier, 2022. <a href="https://doi.org/10.1016/j.jcp.2022.111439">https://doi.org/10.1016/j.jcp.2022.111439</a>.
  ieee: A. Kalinov, A. I. Osinskiy, S. A. Matveev, W. Otieno, and N. V. Brilliantov,
    “Direct simulation Monte Carlo for new regimes in aggregation-fragmentation kinetics,”
    <i>Journal of Computational Physics</i>, vol. 467. Elsevier, 2022.
  ista: Kalinov A, Osinskiy AI, Matveev SA, Otieno W, Brilliantov NV. 2022. Direct
    simulation Monte Carlo for new regimes in aggregation-fragmentation kinetics.
    Journal of Computational Physics. 467, 111439.
  mla: Kalinov, Aleksei, et al. “Direct Simulation Monte Carlo for New Regimes in
    Aggregation-Fragmentation Kinetics.” <i>Journal of Computational Physics</i>,
    vol. 467, 111439, Elsevier, 2022, doi:<a href="https://doi.org/10.1016/j.jcp.2022.111439">10.1016/j.jcp.2022.111439</a>.
  short: A. Kalinov, A.I. Osinskiy, S.A. Matveev, W. Otieno, N.V. Brilliantov, Journal
    of Computational Physics 467 (2022).
date_created: 2022-07-11T12:19:59Z
date_published: 2022-10-15T00:00:00Z
date_updated: 2024-10-21T06:01:47Z
day: '15'
ddc:
- '518'
department:
- _id: GradSch
- _id: ChWo
doi: 10.1016/j.jcp.2022.111439
external_id:
  arxiv:
  - '2103.09481'
  isi:
  - '000917225500013'
intvolume: '       467'
isi: 1
keyword:
- Computer Science Applications
- Physics and Astronomy (miscellaneous)
- Applied Mathematics
- Computational Mathematics
- Modeling and Simulation
- Numerical Analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2103.09481
month: '10'
oa: 1
oa_version: Preprint
publication: Journal of Computational Physics
publication_identifier:
  issn:
  - 0021-9991
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Direct simulation Monte Carlo for new regimes in aggregation-fragmentation
  kinetics
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 467
year: '2022'
...
---
_id: '11916'
abstract:
- lang: eng
  text: A domain is called Kac regular for a quadratic form on L2 if every functions
    vanishing almost everywhere outside the domain can be approximated in form norm
    by functions with compact support in the domain. It is shown that this notion
    is stable under domination of quadratic forms. As applications measure perturbations
    of quasi-regular Dirichlet forms, Cheeger energies on metric measure spaces and
    Schrödinger operators on manifolds are studied. Along the way a characterization
    of the Sobolev space with Dirichlet boundary conditions on domains in infinitesimally
    Riemannian metric measure spaces is obtained.
acknowledgement: "The author was supported by the German Academic Scholarship Foundation
  (Studienstiftung des deutschen Volkes) and by the German Research Foundation (DFG)
  via RTG 1523/2. The author would like to thank Daniel Lenz for his support and encouragement
  during the author’s ongoing graduate studies and him as well as Marcel Schmidt for
  fruitful discussions on domination of quadratic forms. He wants to thank Batu Güneysu
  and Peter Stollmann for valuable comments on a preliminary version of this article.
  He would also like to thank the organizers of the conference Analysis and Geometry
  on Graphs and Manifolds in Potsdam, where the initial motivation of this article
  was conceived, and the organizers of the intense activity period Metric Measure
  Spaces and Ricci Curvature at MPIM in Bonn, where this work was finished.\r\nOpen
  access funding provided by Institute of Science and Technology (IST Austria)."
article_number: '38'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Melchior
  full_name: Wirth, Melchior
  id: 88644358-0A0E-11EA-8FA5-49A33DDC885E
  last_name: Wirth
  orcid: 0000-0002-0519-4241
citation:
  ama: Wirth M. Kac regularity and domination of quadratic forms. <i>Advances in Operator
    Theory</i>. 2022;7(3). doi:<a href="https://doi.org/10.1007/s43036-022-00199-w">10.1007/s43036-022-00199-w</a>
  apa: Wirth, M. (2022). Kac regularity and domination of quadratic forms. <i>Advances
    in Operator Theory</i>. Springer Nature. <a href="https://doi.org/10.1007/s43036-022-00199-w">https://doi.org/10.1007/s43036-022-00199-w</a>
  chicago: Wirth, Melchior. “Kac Regularity and Domination of Quadratic Forms.” <i>Advances
    in Operator Theory</i>. Springer Nature, 2022. <a href="https://doi.org/10.1007/s43036-022-00199-w">https://doi.org/10.1007/s43036-022-00199-w</a>.
  ieee: M. Wirth, “Kac regularity and domination of quadratic forms,” <i>Advances
    in Operator Theory</i>, vol. 7, no. 3. Springer Nature, 2022.
  ista: Wirth M. 2022. Kac regularity and domination of quadratic forms. Advances
    in Operator Theory. 7(3), 38.
  mla: Wirth, Melchior. “Kac Regularity and Domination of Quadratic Forms.” <i>Advances
    in Operator Theory</i>, vol. 7, no. 3, 38, Springer Nature, 2022, doi:<a href="https://doi.org/10.1007/s43036-022-00199-w">10.1007/s43036-022-00199-w</a>.
  short: M. Wirth, Advances in Operator Theory 7 (2022).
corr_author: '1'
date_created: 2022-08-18T07:22:24Z
date_published: 2022-07-01T00:00:00Z
date_updated: 2024-10-09T21:03:07Z
day: '01'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1007/s43036-022-00199-w
file:
- access_level: open_access
  checksum: 913474844a1b38264fb710746d5e2e98
  content_type: application/pdf
  creator: dernst
  date_created: 2022-08-18T08:02:34Z
  date_updated: 2022-08-18T08:02:34Z
  file_id: '11921'
  file_name: 2022_AdvancesOperatorTheory_Wirth.pdf
  file_size: 389060
  relation: main_file
  success: 1
file_date_updated: 2022-08-18T08:02:34Z
has_accepted_license: '1'
intvolume: '         7'
issue: '3'
keyword:
- Algebra and Number Theory
- Analysis
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Advances in Operator Theory
publication_identifier:
  eissn:
  - 2538-225X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Kac regularity and domination of quadratic forms
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: 7
year: '2022'
...
---
_id: '12148'
abstract:
- lang: eng
  text: 'We prove a general local law for Wigner matrices that optimally handles observables
    of arbitrary rank and thus unifies the well-known averaged and isotropic local
    laws. As an application, we prove a central limit theorem in quantum unique ergodicity
    (QUE): that is, we show that the quadratic forms of a general deterministic matrix
    A on the bulk eigenvectors of a Wigner matrix have approximately Gaussian fluctuation.
    For the bulk spectrum, we thus generalise our previous result [17] as valid for
    test matrices A of large rank as well as the result of Benigni and Lopatto [7]
    as valid for specific small-rank observables.'
acknowledgement: L.E. acknowledges support by ERC Advanced Grant ‘RMTBeyond’ No. 101020331.
  D.S. acknowledges the support of Dr. Max Rössler, the Walter Haefner Foundation
  and the ETH Zürich Foundation.
article_number: e96
article_processing_charge: No
article_type: original
author:
- first_name: Giorgio
  full_name: Cipolloni, Giorgio
  id: 42198EFA-F248-11E8-B48F-1D18A9856A87
  last_name: Cipolloni
  orcid: 0000-0002-4901-7992
- first_name: László
  full_name: Erdös, László
  id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
  last_name: Erdös
  orcid: 0000-0001-5366-9603
- first_name: Dominik J
  full_name: Schröder, Dominik J
  id: 408ED176-F248-11E8-B48F-1D18A9856A87
  last_name: Schröder
  orcid: 0000-0002-2904-1856
citation:
  ama: Cipolloni G, Erdös L, Schröder DJ. Rank-uniform local law for Wigner matrices.
    <i>Forum of Mathematics, Sigma</i>. 2022;10. doi:<a href="https://doi.org/10.1017/fms.2022.86">10.1017/fms.2022.86</a>
  apa: Cipolloni, G., Erdös, L., &#38; Schröder, D. J. (2022). Rank-uniform local
    law for Wigner matrices. <i>Forum of Mathematics, Sigma</i>. Cambridge University
    Press. <a href="https://doi.org/10.1017/fms.2022.86">https://doi.org/10.1017/fms.2022.86</a>
  chicago: Cipolloni, Giorgio, László Erdös, and Dominik J Schröder. “Rank-Uniform
    Local Law for Wigner Matrices.” <i>Forum of Mathematics, Sigma</i>. Cambridge
    University Press, 2022. <a href="https://doi.org/10.1017/fms.2022.86">https://doi.org/10.1017/fms.2022.86</a>.
  ieee: G. Cipolloni, L. Erdös, and D. J. Schröder, “Rank-uniform local law for Wigner
    matrices,” <i>Forum of Mathematics, Sigma</i>, vol. 10. Cambridge University Press,
    2022.
  ista: Cipolloni G, Erdös L, Schröder DJ. 2022. Rank-uniform local law for Wigner
    matrices. Forum of Mathematics, Sigma. 10, e96.
  mla: Cipolloni, Giorgio, et al. “Rank-Uniform Local Law for Wigner Matrices.” <i>Forum
    of Mathematics, Sigma</i>, vol. 10, e96, Cambridge University Press, 2022, doi:<a
    href="https://doi.org/10.1017/fms.2022.86">10.1017/fms.2022.86</a>.
  short: G. Cipolloni, L. Erdös, D.J. Schröder, Forum of Mathematics, Sigma 10 (2022).
corr_author: '1'
date_created: 2023-01-12T12:07:30Z
date_published: 2022-10-27T00:00:00Z
date_updated: 2025-04-14T07:57:18Z
day: '27'
ddc:
- '510'
department:
- _id: LaEr
doi: 10.1017/fms.2022.86
ec_funded: 1
external_id:
  isi:
  - '000873719200001'
file:
- access_level: open_access
  checksum: 94a049aeb1eea5497aa097712a73c400
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-24T10:02:40Z
  date_updated: 2023-01-24T10:02:40Z
  file_id: '12356'
  file_name: 2022_ForumMath_Cipolloni.pdf
  file_size: 817089
  relation: main_file
  success: 1
file_date_updated: 2023-01-24T10:02:40Z
has_accepted_license: '1'
intvolume: '        10'
isi: 1
keyword:
- Computational Mathematics
- Discrete Mathematics and Combinatorics
- Geometry and Topology
- Mathematical Physics
- Statistics and Probability
- Algebra and Number Theory
- Theoretical Computer Science
- Analysis
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 62796744-2b32-11ec-9570-940b20777f1d
  call_identifier: H2020
  grant_number: '101020331'
  name: Random matrices beyond Wigner-Dyson-Mehta
publication: Forum of Mathematics, Sigma
publication_identifier:
  issn:
  - 2050-5094
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Rank-uniform local law for Wigner matrices
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 10
year: '2022'
...
---
_id: '12179'
abstract:
- lang: eng
  text: We derive an accurate lower tail estimate on the lowest singular value σ1(X−z)
    of a real Gaussian (Ginibre) random matrix X shifted by a complex parameter z.
    Such shift effectively changes the upper tail behavior of the condition number
    κ(X−z) from the slower (κ(X−z)≥t)≲1/t decay typical for real Ginibre matrices
    to the faster 1/t2 decay seen for complex Ginibre matrices as long as z is away
    from the real axis. This sharpens and resolves a recent conjecture in [J. Banks
    et al., https://arxiv.org/abs/2005.08930, 2020] on the regularizing effect of
    the real Ginibre ensemble with a genuinely complex shift. As a consequence we
    obtain an improved upper bound on the eigenvalue condition numbers (known also
    as the eigenvector overlaps) for real Ginibre matrices. The main technical tool
    is a rigorous supersymmetric analysis from our earlier work [Probab. Math. Phys.,
    1 (2020), pp. 101--146].
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Giorgio
  full_name: Cipolloni, Giorgio
  id: 42198EFA-F248-11E8-B48F-1D18A9856A87
  last_name: Cipolloni
  orcid: 0000-0002-4901-7992
- first_name: László
  full_name: Erdös, László
  id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
  last_name: Erdös
  orcid: 0000-0001-5366-9603
- first_name: Dominik J
  full_name: Schröder, Dominik J
  id: 408ED176-F248-11E8-B48F-1D18A9856A87
  last_name: Schröder
  orcid: 0000-0002-2904-1856
citation:
  ama: Cipolloni G, Erdös L, Schröder DJ. On the condition number of the shifted real
    Ginibre ensemble. <i>SIAM Journal on Matrix Analysis and Applications</i>. 2022;43(3):1469-1487.
    doi:<a href="https://doi.org/10.1137/21m1424408">10.1137/21m1424408</a>
  apa: Cipolloni, G., Erdös, L., &#38; Schröder, D. J. (2022). On the condition number
    of the shifted real Ginibre ensemble. <i>SIAM Journal on Matrix Analysis and Applications</i>.
    Society for Industrial and Applied Mathematics. <a href="https://doi.org/10.1137/21m1424408">https://doi.org/10.1137/21m1424408</a>
  chicago: Cipolloni, Giorgio, László Erdös, and Dominik J Schröder. “On the Condition
    Number of the Shifted Real Ginibre Ensemble.” <i>SIAM Journal on Matrix Analysis
    and Applications</i>. Society for Industrial and Applied Mathematics, 2022. <a
    href="https://doi.org/10.1137/21m1424408">https://doi.org/10.1137/21m1424408</a>.
  ieee: G. Cipolloni, L. Erdös, and D. J. Schröder, “On the condition number of the
    shifted real Ginibre ensemble,” <i>SIAM Journal on Matrix Analysis and Applications</i>,
    vol. 43, no. 3. Society for Industrial and Applied Mathematics, pp. 1469–1487,
    2022.
  ista: Cipolloni G, Erdös L, Schröder DJ. 2022. On the condition number of the shifted
    real Ginibre ensemble. SIAM Journal on Matrix Analysis and Applications. 43(3),
    1469–1487.
  mla: Cipolloni, Giorgio, et al. “On the Condition Number of the Shifted Real Ginibre
    Ensemble.” <i>SIAM Journal on Matrix Analysis and Applications</i>, vol. 43, no.
    3, Society for Industrial and Applied Mathematics, 2022, pp. 1469–87, doi:<a href="https://doi.org/10.1137/21m1424408">10.1137/21m1424408</a>.
  short: G. Cipolloni, L. Erdös, D.J. Schröder, SIAM Journal on Matrix Analysis and
    Applications 43 (2022) 1469–1487.
corr_author: '1'
date_created: 2023-01-12T12:12:38Z
date_published: 2022-07-01T00:00:00Z
date_updated: 2025-09-10T09:51:27Z
day: '01'
department:
- _id: LaEr
doi: 10.1137/21m1424408
external_id:
  arxiv:
  - '2105.13719'
  isi:
  - '001125796400002'
intvolume: '        43'
isi: 1
issue: '3'
keyword:
- Analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2105.13719
month: '07'
oa: 1
oa_version: Preprint
page: 1469-1487
publication: SIAM Journal on Matrix Analysis and Applications
publication_identifier:
  eissn:
  - 1095-7162
  issn:
  - 0895-4798
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the condition number of the shifted real Ginibre ensemble
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 43
year: '2022'
...
---
_id: '12216'
abstract:
- lang: eng
  text: Many trace inequalities can be expressed either as concavity/convexity theorems
    or as monotonicity theorems. A classic example is the joint convexity of the quantum
    relative entropy which is equivalent to the Data Processing Inequality. The latter
    says that quantum operations can never increase the relative entropy. The monotonicity
    versions often have many advantages, and often have direct physical application,
    as in the example just mentioned. Moreover, the monotonicity results are often
    valid for a larger class of maps than, say, quantum operations (which are completely
    positive). In this paper we prove several new monotonicity results, the first
    of which is a monotonicity theorem that has as a simple corollary a celebrated
    concavity theorem of Epstein. Our starting points are the monotonicity versions
    of the Lieb Concavity and the Lieb Convexity Theorems. We also give two new proofs
    of these in their general forms using interpolation. We then prove our new monotonicity
    theorems by several duality arguments.
acknowledgement: Work partially supported by the Lise Meitner fellowship, Austrian
  Science Fund (FWF) M3337.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Eric A.
  full_name: Carlen, Eric A.
  last_name: Carlen
- first_name: Haonan
  full_name: Zhang, Haonan
  id: D8F41E38-9E66-11E9-A9E2-65C2E5697425
  last_name: Zhang
citation:
  ama: Carlen EA, Zhang H. Monotonicity versions of Epstein’s concavity theorem and
    related inequalities. <i>Linear Algebra and its Applications</i>. 2022;654:289-310.
    doi:<a href="https://doi.org/10.1016/j.laa.2022.09.001">10.1016/j.laa.2022.09.001</a>
  apa: Carlen, E. A., &#38; Zhang, H. (2022). Monotonicity versions of Epstein’s concavity
    theorem and related inequalities. <i>Linear Algebra and Its Applications</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.laa.2022.09.001">https://doi.org/10.1016/j.laa.2022.09.001</a>
  chicago: Carlen, Eric A., and Haonan Zhang. “Monotonicity Versions of Epstein’s
    Concavity Theorem and Related Inequalities.” <i>Linear Algebra and Its Applications</i>.
    Elsevier, 2022. <a href="https://doi.org/10.1016/j.laa.2022.09.001">https://doi.org/10.1016/j.laa.2022.09.001</a>.
  ieee: E. A. Carlen and H. Zhang, “Monotonicity versions of Epstein’s concavity theorem
    and related inequalities,” <i>Linear Algebra and its Applications</i>, vol. 654.
    Elsevier, pp. 289–310, 2022.
  ista: Carlen EA, Zhang H. 2022. Monotonicity versions of Epstein’s concavity theorem
    and related inequalities. Linear Algebra and its Applications. 654, 289–310.
  mla: Carlen, Eric A., and Haonan Zhang. “Monotonicity Versions of Epstein’s Concavity
    Theorem and Related Inequalities.” <i>Linear Algebra and Its Applications</i>,
    vol. 654, Elsevier, 2022, pp. 289–310, doi:<a href="https://doi.org/10.1016/j.laa.2022.09.001">10.1016/j.laa.2022.09.001</a>.
  short: E.A. Carlen, H. Zhang, Linear Algebra and Its Applications 654 (2022) 289–310.
corr_author: '1'
date_created: 2023-01-16T09:46:38Z
date_published: 2022-12-01T00:00:00Z
date_updated: 2025-04-14T13:05:27Z
day: '01'
ddc:
- '510'
department:
- _id: JaMa
doi: 10.1016/j.laa.2022.09.001
external_id:
  isi:
  - '000860689600014'
file:
- access_level: open_access
  checksum: cf3cb7e7e34baa967849f01d8f0c1ae4
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-27T08:08:39Z
  date_updated: 2023-01-27T08:08:39Z
  file_id: '12415'
  file_name: 2022_LinearAlgebra_Carlen.pdf
  file_size: 441184
  relation: main_file
  success: 1
file_date_updated: 2023-01-27T08:08:39Z
has_accepted_license: '1'
intvolume: '       654'
isi: 1
keyword:
- Discrete Mathematics and Combinatorics
- Geometry and Topology
- Numerical Analysis
- Algebra and Number Theory
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 289-310
project:
- _id: eb958bca-77a9-11ec-83b8-c565cb50d8d6
  grant_number: M03337
  name: Curvature-dimension in noncommutative analysis
publication: Linear Algebra and its Applications
publication_identifier:
  issn:
  - 0024-3795
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Monotonicity versions of Epstein's concavity theorem and related inequalities
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 654
year: '2022'
...
---
_id: '12304'
abstract:
- lang: eng
  text: 'We establish sharp criteria for the instantaneous propagation of free boundaries
    in solutions to the thin-film equation. The criteria are formulated in terms of
    the initial distribution of mass (as opposed to previous almost-optimal results),
    reflecting the fact that mass is a locally conserved quantity for the thin-film
    equation. In the regime of weak slippage, our criteria are at the same time necessary
    and sufficient. The proof of our upper bounds on free boundary propagation is
    based on a strategy of “propagation of degeneracy” down to arbitrarily small spatial
    scales: We combine estimates on the local mass and estimates on energies to show
    that “degeneracy” on a certain space-time cylinder entails “degeneracy” on a spatially
    smaller space-time cylinder with the same time horizon. The derivation of our
    lower bounds on free boundary propagation is based on a combination of a monotone
    quantity and almost optimal estimates established previously by the second author
    with a new estimate connecting motion of mass to entropy production.'
acknowledgement: N. De Nitti acknowledges the kind hospitality of IST Austria within
  the framework of the ISTernship Summer Program 2018, during which most of the present
  article was written. N. DeNitti has received funding by The Austrian Agency for
  International Cooperation in Education &Research (OeAD-GmbH) via its financial support
  of the ISTernship Summer Program 2018. N.De Nitti would also like to thank Giuseppe
  Coclite, Giuseppe Devillanova, Giuseppe Florio, Sebastian Hensel, and Francesco
  Maddalena for several helpful conversations on topics related to this work.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Nicola
  full_name: De Nitti, Nicola
  last_name: De Nitti
- 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: De Nitti N, Fischer JL. Sharp criteria for the waiting time phenomenon in solutions
    to the thin-film equation. <i>Communications in Partial Differential Equations</i>.
    2022;47(7):1394-1434. doi:<a href="https://doi.org/10.1080/03605302.2022.2056702">10.1080/03605302.2022.2056702</a>
  apa: De Nitti, N., &#38; Fischer, J. L. (2022). Sharp criteria for the waiting time
    phenomenon in solutions to the thin-film equation. <i>Communications in Partial
    Differential Equations</i>. Taylor &#38; Francis. <a href="https://doi.org/10.1080/03605302.2022.2056702">https://doi.org/10.1080/03605302.2022.2056702</a>
  chicago: De Nitti, Nicola, and Julian L Fischer. “Sharp Criteria for the Waiting
    Time Phenomenon in Solutions to the Thin-Film Equation.” <i>Communications in
    Partial Differential Equations</i>. Taylor &#38; Francis, 2022. <a href="https://doi.org/10.1080/03605302.2022.2056702">https://doi.org/10.1080/03605302.2022.2056702</a>.
  ieee: N. De Nitti and J. L. Fischer, “Sharp criteria for the waiting time phenomenon
    in solutions to the thin-film equation,” <i>Communications in Partial Differential
    Equations</i>, vol. 47, no. 7. Taylor &#38; Francis, pp. 1394–1434, 2022.
  ista: De Nitti N, Fischer JL. 2022. Sharp criteria for the waiting time phenomenon
    in solutions to the thin-film equation. Communications in Partial Differential
    Equations. 47(7), 1394–1434.
  mla: De Nitti, Nicola, and Julian L. Fischer. “Sharp Criteria for the Waiting Time
    Phenomenon in Solutions to the Thin-Film Equation.” <i>Communications in Partial
    Differential Equations</i>, vol. 47, no. 7, Taylor &#38; Francis, 2022, pp. 1394–434,
    doi:<a href="https://doi.org/10.1080/03605302.2022.2056702">10.1080/03605302.2022.2056702</a>.
  short: N. De Nitti, J.L. Fischer, Communications in Partial Differential Equations
    47 (2022) 1394–1434.
corr_author: '1'
date_created: 2023-01-16T10:06:50Z
date_published: 2022-07-01T00:00:00Z
date_updated: 2024-10-09T21:03:57Z
day: '01'
department:
- _id: JuFi
doi: 10.1080/03605302.2022.2056702
external_id:
  arxiv:
  - '1907.05342'
  isi:
  - '000805689800001'
intvolume: '        47'
isi: 1
issue: '7'
keyword:
- Applied Mathematics
- Analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.48550/arXiv.1907.05342'
month: '07'
oa: 1
oa_version: Preprint
page: 1394-1434
publication: Communications in Partial Differential Equations
publication_identifier:
  eissn:
  - 1532-4133
  issn:
  - 0360-5302
publication_status: published
publisher: Taylor & Francis
quality_controlled: '1'
scopus_import: '1'
status: public
title: Sharp criteria for the waiting time phenomenon in solutions to the thin-film
  equation
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 47
year: '2022'
...
---
_id: '12305'
abstract:
- lang: eng
  text: This paper is concerned with the sharp interface limit for the Allen--Cahn
    equation with a nonlinear Robin boundary condition in a bounded smooth domain
    Ω⊂\R2. We assume that a diffuse interface already has developed and that it is
    in contact with the boundary ∂Ω. The boundary condition is designed in such a
    way that the limit problem is given by the mean curvature flow with constant α-contact
    angle. For α close to 90° we prove a local in time convergence result for well-prepared
    initial data for times when a smooth solution to the limit problem exists. Based
    on the latter we construct a suitable curvilinear coordinate system and carry
    out a rigorous asymptotic expansion for the Allen--Cahn equation with the nonlinear
    Robin boundary condition. Moreover, we show a spectral estimate for the corresponding
    linearized Allen--Cahn operator and with its aid we derive strong norm estimates
    for the difference of the exact and approximate solutions using a Gronwall-type
    argument.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Helmut
  full_name: Abels, Helmut
  last_name: Abels
- first_name: Maximilian
  full_name: Moser, Maximilian
  id: a60047a9-da77-11eb-85b4-c4dc385ebb8c
  last_name: Moser
citation:
  ama: Abels H, Moser M. Convergence of the Allen--Cahn equation with a nonlinear
    Robin boundary condition to mean curvature flow with contact angle close to 90°.
    <i>SIAM Journal on Mathematical Analysis</i>. 2022;54(1):114-172. doi:<a href="https://doi.org/10.1137/21m1424925">10.1137/21m1424925</a>
  apa: Abels, H., &#38; Moser, M. (2022). Convergence of the Allen--Cahn equation
    with a nonlinear Robin boundary condition to mean curvature flow with contact
    angle close to 90°. <i>SIAM Journal on Mathematical Analysis</i>. Society for
    Industrial and Applied Mathematics. <a href="https://doi.org/10.1137/21m1424925">https://doi.org/10.1137/21m1424925</a>
  chicago: Abels, Helmut, and Maximilian Moser. “Convergence of the Allen--Cahn Equation
    with a Nonlinear Robin Boundary Condition to Mean Curvature Flow with Contact
    Angle Close to 90°.” <i>SIAM Journal on Mathematical Analysis</i>. Society for
    Industrial and Applied Mathematics, 2022. <a href="https://doi.org/10.1137/21m1424925">https://doi.org/10.1137/21m1424925</a>.
  ieee: H. Abels and M. Moser, “Convergence of the Allen--Cahn equation with a nonlinear
    Robin boundary condition to mean curvature flow with contact angle close to 90°,”
    <i>SIAM Journal on Mathematical Analysis</i>, vol. 54, no. 1. Society for Industrial
    and Applied Mathematics, pp. 114–172, 2022.
  ista: Abels H, Moser M. 2022. Convergence of the Allen--Cahn equation with a nonlinear
    Robin boundary condition to mean curvature flow with contact angle close to 90°.
    SIAM Journal on Mathematical Analysis. 54(1), 114–172.
  mla: Abels, Helmut, and Maximilian Moser. “Convergence of the Allen--Cahn Equation
    with a Nonlinear Robin Boundary Condition to Mean Curvature Flow with Contact
    Angle Close to 90°.” <i>SIAM Journal on Mathematical Analysis</i>, vol. 54, no.
    1, Society for Industrial and Applied Mathematics, 2022, pp. 114–72, doi:<a href="https://doi.org/10.1137/21m1424925">10.1137/21m1424925</a>.
  short: H. Abels, M. Moser, SIAM Journal on Mathematical Analysis 54 (2022) 114–172.
corr_author: '1'
date_created: 2023-01-16T10:07:00Z
date_published: 2022-01-04T00:00:00Z
date_updated: 2024-10-09T21:03:58Z
day: '04'
department:
- _id: JuFi
doi: 10.1137/21m1424925
external_id:
  arxiv:
  - '2105.08434'
  isi:
  - '000762768000004'
intvolume: '        54'
isi: 1
issue: '1'
keyword:
- Applied Mathematics
- Computational Mathematics
- Analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.48550/arXiv.2105.08434'
month: '01'
oa: 1
oa_version: Preprint
page: 114-172
publication: SIAM Journal on Mathematical Analysis
publication_identifier:
  eissn:
  - 1095-7154
  issn:
  - 0036-1410
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Convergence of the Allen--Cahn equation with a nonlinear Robin boundary condition
  to mean curvature flow with contact angle close to 90°
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 54
year: '2022'
...
---
_id: '10643'
abstract:
- lang: eng
  text: "We prove a generalised super-adiabatic theorem for extended fermionic systems
    assuming a spectral gap only in the bulk. More precisely, we assume that the infinite
    system has a unique ground state and that the corresponding Gelfand–Naimark–Segal
    Hamiltonian has a spectral gap above its eigenvalue zero. Moreover, we show that
    a similar adiabatic theorem also holds in the bulk of finite systems up to errors
    that vanish faster than any inverse power of the system size, although the corresponding
    finite-volume Hamiltonians need not have a spectral gap.\r\n\r\n"
acknowledgement: J.H. acknowledges partial financial support by the ERC Advanced Grant
  ‘RMTBeyond’ No. 101020331. Support for publication costs from the Deutsche Forschungsgemeinschaft
  and the Open Access Publishing Fund of the University of Tübingen is gratefully
  acknowledged.
article_number: e4
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Sven Joscha
  full_name: Henheik, Sven Joscha
  id: 31d731d7-d235-11ea-ad11-b50331c8d7fb
  last_name: Henheik
  orcid: 0000-0003-1106-327X
- first_name: Stefan
  full_name: Teufel, Stefan
  last_name: Teufel
citation:
  ama: 'Henheik SJ, Teufel S. Adiabatic theorem in the thermodynamic limit: Systems
    with a gap in the bulk. <i>Forum of Mathematics, Sigma</i>. 2022;10. doi:<a href="https://doi.org/10.1017/fms.2021.80">10.1017/fms.2021.80</a>'
  apa: 'Henheik, S. J., &#38; Teufel, S. (2022). Adiabatic theorem in the thermodynamic
    limit: Systems with a gap in the bulk. <i>Forum of Mathematics, Sigma</i>. Cambridge
    University Press. <a href="https://doi.org/10.1017/fms.2021.80">https://doi.org/10.1017/fms.2021.80</a>'
  chicago: 'Henheik, Sven Joscha, and Stefan Teufel. “Adiabatic Theorem in the Thermodynamic
    Limit: Systems with a Gap in the Bulk.” <i>Forum of Mathematics, Sigma</i>. Cambridge
    University Press, 2022. <a href="https://doi.org/10.1017/fms.2021.80">https://doi.org/10.1017/fms.2021.80</a>.'
  ieee: 'S. J. Henheik and S. Teufel, “Adiabatic theorem in the thermodynamic limit:
    Systems with a gap in the bulk,” <i>Forum of Mathematics, Sigma</i>, vol. 10.
    Cambridge University Press, 2022.'
  ista: 'Henheik SJ, Teufel S. 2022. Adiabatic theorem in the thermodynamic limit:
    Systems with a gap in the bulk. Forum of Mathematics, Sigma. 10, e4.'
  mla: 'Henheik, Sven Joscha, and Stefan Teufel. “Adiabatic Theorem in the Thermodynamic
    Limit: Systems with a Gap in the Bulk.” <i>Forum of Mathematics, Sigma</i>, vol.
    10, e4, Cambridge University Press, 2022, doi:<a href="https://doi.org/10.1017/fms.2021.80">10.1017/fms.2021.80</a>.'
  short: S.J. Henheik, S. Teufel, Forum of Mathematics, Sigma 10 (2022).
corr_author: '1'
date_created: 2022-01-18T16:18:51Z
date_published: 2022-01-18T00:00:00Z
date_updated: 2025-04-14T07:57:17Z
day: '18'
ddc:
- '510'
department:
- _id: GradSch
- _id: LaEr
doi: 10.1017/fms.2021.80
ec_funded: 1
external_id:
  arxiv:
  - '2012.15239'
  isi:
  - '000743615000001'
file:
- access_level: open_access
  checksum: 87592a755adcef22ea590a99dc728dd3
  content_type: application/pdf
  creator: cchlebak
  date_created: 2022-01-19T09:27:43Z
  date_updated: 2022-01-19T09:27:43Z
  file_id: '10646'
  file_name: 2022_ForumMathSigma_Henheik.pdf
  file_size: 705323
  relation: main_file
  success: 1
file_date_updated: 2022-01-19T09:27:43Z
has_accepted_license: '1'
intvolume: '        10'
isi: 1
keyword:
- computational mathematics
- discrete mathematics and combinatorics
- geometry and topology
- mathematical physics
- statistics and probability
- algebra and number theory
- theoretical computer science
- analysis
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 62796744-2b32-11ec-9570-940b20777f1d
  call_identifier: H2020
  grant_number: '101020331'
  name: Random matrices beyond Wigner-Dyson-Mehta
publication: Forum of Mathematics, Sigma
publication_identifier:
  eissn:
  - 2050-5094
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Adiabatic theorem in the thermodynamic limit: Systems with a gap in the bulk'
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 10
year: '2022'
...
---
_id: '10211'
abstract:
- lang: eng
  text: "We study the problem of recovering an unknown signal \U0001D465\U0001D465
    given measurements obtained from a generalized linear model with a Gaussian sensing
    matrix. Two popular solutions are based on a linear estimator \U0001D465\U0001D465^L
    and a spectral estimator \U0001D465\U0001D465^s. The former is a data-dependent
    linear combination of the columns of the measurement matrix, and its analysis
    is quite simple. The latter is the principal eigenvector of a data-dependent matrix,
    and a recent line of work has studied its performance. In this paper, we show
    how to optimally combine \U0001D465\U0001D465^L and \U0001D465\U0001D465^s. At
    the heart of our analysis is the exact characterization of the empirical joint
    distribution of (\U0001D465\U0001D465,\U0001D465\U0001D465^L,\U0001D465\U0001D465^s)
    in the high-dimensional limit. This allows us to compute the Bayes-optimal combination
    of \U0001D465\U0001D465^L and \U0001D465\U0001D465^s, given the limiting distribution
    of the signal \U0001D465\U0001D465. When the distribution of the signal is Gaussian,
    then the Bayes-optimal combination has the form \U0001D703\U0001D465\U0001D465^L+\U0001D465\U0001D465^s
    and we derive the optimal combination coefficient. In order to establish the limiting
    distribution of (\U0001D465\U0001D465,\U0001D465\U0001D465^L,\U0001D465\U0001D465^s),
    we design and analyze an approximate message passing algorithm whose iterates
    give \U0001D465\U0001D465^L and approach \U0001D465\U0001D465^s. Numerical simulations
    demonstrate the improvement of the proposed combination with respect to the two
    methods considered separately."
acknowledgement: M. Mondelli would like to thank Andrea Montanari for helpful discussions.
  All the authors would like to thank the anonymous reviewers for their helpful comments.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Marco
  full_name: Mondelli, Marco
  id: 27EB676C-8706-11E9-9510-7717E6697425
  last_name: Mondelli
  orcid: 0000-0002-3242-7020
- first_name: Christos
  full_name: Thrampoulidis, Christos
  last_name: Thrampoulidis
- first_name: Ramji
  full_name: Venkataramanan, Ramji
  last_name: Venkataramanan
citation:
  ama: Mondelli M, Thrampoulidis C, Venkataramanan R. Optimal combination of linear
    and spectral estimators for generalized linear models. <i>Foundations of Computational
    Mathematics</i>. 2022;22(5):1513-1566. doi:<a href="https://doi.org/10.1007/s10208-021-09531-x">10.1007/s10208-021-09531-x</a>
  apa: Mondelli, M., Thrampoulidis, C., &#38; Venkataramanan, R. (2022). Optimal combination
    of linear and spectral estimators for generalized linear models. <i>Foundations
    of Computational Mathematics</i>. Springer. <a href="https://doi.org/10.1007/s10208-021-09531-x">https://doi.org/10.1007/s10208-021-09531-x</a>
  chicago: Mondelli, Marco, Christos Thrampoulidis, and Ramji Venkataramanan. “Optimal
    Combination of Linear and Spectral Estimators for Generalized Linear Models.”
    <i>Foundations of Computational Mathematics</i>. Springer, 2022. <a href="https://doi.org/10.1007/s10208-021-09531-x">https://doi.org/10.1007/s10208-021-09531-x</a>.
  ieee: M. Mondelli, C. Thrampoulidis, and R. Venkataramanan, “Optimal combination
    of linear and spectral estimators for generalized linear models,” <i>Foundations
    of Computational Mathematics</i>, vol. 22, no. 5. Springer, pp. 1513–1566, 2022.
  ista: Mondelli M, Thrampoulidis C, Venkataramanan R. 2022. Optimal combination of
    linear and spectral estimators for generalized linear models. Foundations of Computational
    Mathematics. 22(5), 1513–1566.
  mla: Mondelli, Marco, et al. “Optimal Combination of Linear and Spectral Estimators
    for Generalized Linear Models.” <i>Foundations of Computational Mathematics</i>,
    vol. 22, no. 5, Springer, 2022, pp. 1513–66, doi:<a href="https://doi.org/10.1007/s10208-021-09531-x">10.1007/s10208-021-09531-x</a>.
  short: M. Mondelli, C. Thrampoulidis, R. Venkataramanan, Foundations of Computational
    Mathematics 22 (2022) 1513–1566.
date_created: 2021-11-03T10:59:08Z
date_published: 2022-10-01T00:00:00Z
date_updated: 2025-04-15T06:53:08Z
day: '01'
ddc:
- '510'
department:
- _id: MaMo
doi: 10.1007/s10208-021-09531-x
external_id:
  arxiv:
  - '2008.03326'
  isi:
  - '000685721000001'
file:
- access_level: open_access
  checksum: 9ea12dd8045a0678000a3a59295221cb
  content_type: application/pdf
  creator: alisjak
  date_created: 2021-12-13T15:47:54Z
  date_updated: 2021-12-13T15:47:54Z
  file_id: '10542'
  file_name: 2021_Springer_Mondelli.pdf
  file_size: 2305731
  relation: main_file
  success: 1
file_date_updated: 2021-12-13T15:47:54Z
has_accepted_license: '1'
intvolume: '        22'
isi: 1
issue: '5'
keyword:
- Applied Mathematics
- Computational Theory and Mathematics
- Computational Mathematics
- Analysis
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 1513-1566
project:
- _id: B67AFEDC-15C9-11EA-A837-991A96BB2854
  name: IST Austria Open Access Fund
publication: Foundations of Computational Mathematics
publication_identifier:
  eissn:
  - 1615-3383
  issn:
  - 1615-3375
publication_status: published
publisher: Springer
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optimal combination of linear and spectral estimators for generalized linear
  models
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: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 22
year: '2022'
...
---
_id: '10850'
abstract:
- lang: eng
  text: "We study two interacting quantum particles forming a bound state in d-dimensional
    free\r\nspace, and constrain the particles in k directions to (0, ∞)k ×Rd−k, with
    Neumann boundary\r\nconditions. First, we prove that the ground state energy strictly
    decreases upon going from k\r\nto k+1. This shows that the particles stick to
    the corner where all boundary planes intersect.\r\nSecond, we show that for all
    k the resulting Hamiltonian, after removing the free part of the\r\nkinetic energy,
    has only finitely many eigenvalues below the essential spectrum. This paper\r\ngeneralizes
    the work of Egger, Kerner and Pankrashkin (J. Spectr. Theory 10(4):1413–1444,\r\n2020)
    to dimensions d > 1."
acknowledgement: We thank Rupert Frank for contributing Appendix B. Funding from the
  European Union's Horizon 2020 research and innovation programme under the ERC grant
  agreement No. 694227 is gratefully acknowledged.
article_number: '109455'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Barbara
  full_name: Roos, Barbara
  id: 5DA90512-D80F-11E9-8994-2E2EE6697425
  last_name: Roos
  orcid: 0000-0002-9071-5880
- first_name: Robert
  full_name: Seiringer, Robert
  id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
  last_name: Seiringer
  orcid: 0000-0002-6781-0521
citation:
  ama: Roos B, Seiringer R. Two-particle bound states at interfaces and corners. <i>Journal
    of Functional Analysis</i>. 2022;282(12). doi:<a href="https://doi.org/10.1016/j.jfa.2022.109455">10.1016/j.jfa.2022.109455</a>
  apa: Roos, B., &#38; Seiringer, R. (2022). Two-particle bound states at interfaces
    and corners. <i>Journal of Functional Analysis</i>. Elsevier. <a href="https://doi.org/10.1016/j.jfa.2022.109455">https://doi.org/10.1016/j.jfa.2022.109455</a>
  chicago: Roos, Barbara, and Robert Seiringer. “Two-Particle Bound States at Interfaces
    and Corners.” <i>Journal of Functional Analysis</i>. Elsevier, 2022. <a href="https://doi.org/10.1016/j.jfa.2022.109455">https://doi.org/10.1016/j.jfa.2022.109455</a>.
  ieee: B. Roos and R. Seiringer, “Two-particle bound states at interfaces and corners,”
    <i>Journal of Functional Analysis</i>, vol. 282, no. 12. Elsevier, 2022.
  ista: Roos B, Seiringer R. 2022. Two-particle bound states at interfaces and corners.
    Journal of Functional Analysis. 282(12), 109455.
  mla: Roos, Barbara, and Robert Seiringer. “Two-Particle Bound States at Interfaces
    and Corners.” <i>Journal of Functional Analysis</i>, vol. 282, no. 12, 109455,
    Elsevier, 2022, doi:<a href="https://doi.org/10.1016/j.jfa.2022.109455">10.1016/j.jfa.2022.109455</a>.
  short: B. Roos, R. Seiringer, Journal of Functional Analysis 282 (2022).
corr_author: '1'
date_created: 2022-03-16T08:41:53Z
date_published: 2022-06-15T00:00:00Z
date_updated: 2026-04-07T13:27:39Z
day: '15'
ddc:
- '510'
department:
- _id: GradSch
- _id: RoSe
doi: 10.1016/j.jfa.2022.109455
ec_funded: 1
external_id:
  arxiv:
  - '2105.04874'
  isi:
  - '000795160200009'
file:
- access_level: open_access
  checksum: 63efcefaa1f2717244ef5407bd564426
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  creator: dernst
  date_created: 2022-08-02T10:37:55Z
  date_updated: 2022-08-02T10:37:55Z
  file_id: '11720'
  file_name: 2022_JourFunctionalAnalysis_Roos.pdf
  file_size: 631391
  relation: main_file
  success: 1
file_date_updated: 2022-08-02T10:37:55Z
has_accepted_license: '1'
intvolume: '       282'
isi: 1
issue: '12'
keyword:
- Analysis
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 25C6DC12-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '694227'
  name: Analysis of quantum many-body systems
publication: Journal of Functional Analysis
publication_identifier:
  issn:
  - 0022-1236
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '14374'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Two-particle bound states at interfaces and corners
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 282
year: '2022'
...
---
_id: '11608'
abstract:
- lang: eng
  text: 'In order to understand stellar evolution, it is crucial to efficiently determine
    stellar surface rotation periods. Indeed, while they are of great importance in
    stellar models, angular momentum transport processes inside stars are still poorly
    understood today. Surface rotation, which is linked to the age of the star, is
    one of the constraints needed to improve the way those processes are modelled.
    Statistics of the surface rotation periods for a large sample of stars of different
    spectral types are thus necessary. An efficient tool to automatically determine
    reliable rotation periods is needed when dealing with large samples of stellar
    photometric datasets. The objective of this work is to develop such a tool. For
    this purpose, machine learning classifiers constitute relevant bases to build
    our new methodology. Random forest learning abilities are exploited to automate
    the extraction of rotation periods in Kepler light curves. Rotation periods and
    complementary parameters are obtained via three different methods: a wavelet analysis,
    the autocorrelation function of the light curve, and the composite spectrum. We
    trained three different classifiers: one to detect if rotational modulations are
    present in the light curve, one to flag close binary or classical pulsators candidates
    that can bias our rotation period determination, and finally one classifier to
    provide the final rotation period. We tested our machine learning pipeline on
    23 431 stars of the Kepler K and M dwarf reference rotation catalogue for which
    60% of the stars have been visually inspected. For the sample of 21 707 stars
    where all the input parameters are provided to the algorithm, 94.2% of them are
    correctly classified (as rotating or not). Among the stars that have a rotation
    period in the reference catalogue, the machine learning provides a period that
    agrees within 10% of the reference value for 95.3% of the stars. Moreover, the
    yield of correct rotation periods is raised to 99.5% after visually inspecting
    25.2% of the stars. Over the two main analysis steps, rotation classification
    and period selection, the pipeline yields a global agreement with the reference
    values of 92.1% and 96.9% before and after visual inspection. Random forest classifiers
    are efficient tools to determine reliable rotation periods in large samples of
    stars. The methodology presented here could be easily adapted to extract surface
    rotation periods for stars with different spectral types or observed by other
    instruments such as K2, TESS or by PLATO in the near future.'
acknowledgement: 'We thank Suzanne Aigrain and Joe Llama for providing us with the
  simulated data used in Aigrain et al. (2015). S. N. B., L. B. and R. A. G. acknowledge
  the support from PLATO and GOLF CNES grants. A. R. G. S. acknowledges the support
  from NASA under grant NNX17AF27G. S. M. acknowledges the support from the Spanish
  Ministry of Science and Innovation with the Ramon y Cajal fellowship number RYC-2015-17697.
  P. L. P. and S. M. acknowledge support from the Spanish Ministry of Science and
  Innovation with the grant number PID2019-107187GB-I00. This research has made use
  of the NASA Exoplanet Archive, which is operated by the California Institute of
  Technology, under contract with the National Aeronautics and Space Administration
  under the Exoplanet Exploration Program. Software: Python (Van Rossum & Drake 2009),
  numpy (Oliphant 2006), pandas (The pandas development team 2020; McKinney 2010),
  matplotlib (Hunter 2007), scikit-learn (Pedregosa et al. 2011). The source code
  used to obtain the present results can be found at: https://gitlab.com/sybreton/pushkin
  ; https://gitlab.com/sybreton/ml_surface_rotation_paper .'
article_number: A125
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: S. N.
  full_name: Breton, S. N.
  last_name: Breton
- first_name: A. R. G.
  full_name: Santos, A. R. G.
  last_name: Santos
- first_name: Lisa Annabelle
  full_name: Bugnet, Lisa Annabelle
  id: d9edb345-f866-11ec-9b37-d119b5234501
  last_name: Bugnet
  orcid: 0000-0003-0142-4000
- first_name: S.
  full_name: Mathur, S.
  last_name: Mathur
- first_name: R. A.
  full_name: García, R. A.
  last_name: García
- first_name: P. L.
  full_name: Pallé, P. L.
  last_name: Pallé
citation:
  ama: 'Breton SN, Santos ARG, Bugnet LA, Mathur S, García RA, Pallé PL. ROOSTER:
    A machine-learning analysis tool for Kepler stellar rotation periods. <i>Astronomy
    &#38; Astrophysics</i>. 2021;647. doi:<a href="https://doi.org/10.1051/0004-6361/202039947">10.1051/0004-6361/202039947</a>'
  apa: 'Breton, S. N., Santos, A. R. G., Bugnet, L. A., Mathur, S., García, R. A.,
    &#38; Pallé, P. L. (2021). ROOSTER: A machine-learning analysis tool for Kepler
    stellar rotation periods. <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a
    href="https://doi.org/10.1051/0004-6361/202039947">https://doi.org/10.1051/0004-6361/202039947</a>'
  chicago: 'Breton, S. N., A. R. G. Santos, Lisa Annabelle Bugnet, S. Mathur, R. A.
    García, and P. L. Pallé. “ROOSTER: A Machine-Learning Analysis Tool for Kepler
    Stellar Rotation Periods.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences,
    2021. <a href="https://doi.org/10.1051/0004-6361/202039947">https://doi.org/10.1051/0004-6361/202039947</a>.'
  ieee: 'S. N. Breton, A. R. G. Santos, L. A. Bugnet, S. Mathur, R. A. García, and
    P. L. Pallé, “ROOSTER: A machine-learning analysis tool for Kepler stellar rotation
    periods,” <i>Astronomy &#38; Astrophysics</i>, vol. 647. EDP Sciences, 2021.'
  ista: 'Breton SN, Santos ARG, Bugnet LA, Mathur S, García RA, Pallé PL. 2021. ROOSTER:
    A machine-learning analysis tool for Kepler stellar rotation periods. Astronomy
    &#38; Astrophysics. 647, A125.'
  mla: 'Breton, S. N., et al. “ROOSTER: A Machine-Learning Analysis Tool for Kepler
    Stellar Rotation Periods.” <i>Astronomy &#38; Astrophysics</i>, vol. 647, A125,
    EDP Sciences, 2021, doi:<a href="https://doi.org/10.1051/0004-6361/202039947">10.1051/0004-6361/202039947</a>.'
  short: S.N. Breton, A.R.G. Santos, L.A. Bugnet, S. Mathur, R.A. García, P.L. Pallé,
    Astronomy &#38; Astrophysics 647 (2021).
date_created: 2022-07-18T12:21:32Z
date_published: 2021-03-19T00:00:00Z
date_updated: 2022-08-22T08:47:47Z
day: '19'
doi: 10.1051/0004-6361/202039947
extern: '1'
external_id:
  arxiv:
  - '2101.10152'
intvolume: '       647'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'methods: data analysis / stars: solar-type / stars: activity / stars: rotation
  / starspots'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/2101.10152
month: '03'
oa: 1
oa_version: Preprint
publication: Astronomy & Astrophysics
publication_identifier:
  eissn:
  - 1432-0746
  issn:
  - 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'ROOSTER: A machine-learning analysis tool for Kepler stellar rotation periods'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 647
year: '2021'
...
---
OA_place: publisher
OA_type: free access
_id: '15261'
abstract:
- lang: eng
  text: In this article, we study uniqueness of form extensions in a rather general
    setting. The method is based on the theory of ordered Hilbert spaces and the concept
    of domination of semigroups. Our main abstract result transfers uniqueness of
    form extension of a dominating form to that of a dominated form. This result can
    be applied to a multitude of examples including various magnetic Schrödinger forms
    on graphs and on manifolds.
article_number: '108848'
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
  full_name: Lenz, Daniel
  last_name: Lenz
- first_name: Marcel
  full_name: Schmidt, Marcel
  last_name: Schmidt
- first_name: Melchior
  full_name: Wirth, Melchior
  id: 88644358-0A0E-11EA-8FA5-49A33DDC885E
  last_name: Wirth
  orcid: 0000-0002-0519-4241
citation:
  ama: Lenz D, Schmidt M, Wirth M. Uniqueness of form extensions and domination of
    semigroups. <i>Journal of Functional Analysis</i>. 2021;280(6). doi:<a href="https://doi.org/10.1016/j.jfa.2020.108848">10.1016/j.jfa.2020.108848</a>
  apa: Lenz, D., Schmidt, M., &#38; Wirth, M. (2021). Uniqueness of form extensions
    and domination of semigroups. <i>Journal of Functional Analysis</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.jfa.2020.108848">https://doi.org/10.1016/j.jfa.2020.108848</a>
  chicago: Lenz, Daniel, Marcel Schmidt, and Melchior Wirth. “Uniqueness of Form Extensions
    and Domination of Semigroups.” <i>Journal of Functional Analysis</i>. Elsevier,
    2021. <a href="https://doi.org/10.1016/j.jfa.2020.108848">https://doi.org/10.1016/j.jfa.2020.108848</a>.
  ieee: D. Lenz, M. Schmidt, and M. Wirth, “Uniqueness of form extensions and domination
    of semigroups,” <i>Journal of Functional Analysis</i>, vol. 280, no. 6. Elsevier,
    2021.
  ista: Lenz D, Schmidt M, Wirth M. 2021. Uniqueness of form extensions and domination
    of semigroups. Journal of Functional Analysis. 280(6), 108848.
  mla: Lenz, Daniel, et al. “Uniqueness of Form Extensions and Domination of Semigroups.”
    <i>Journal of Functional Analysis</i>, vol. 280, no. 6, 108848, Elsevier, 2021,
    doi:<a href="https://doi.org/10.1016/j.jfa.2020.108848">10.1016/j.jfa.2020.108848</a>.
  short: D. Lenz, M. Schmidt, M. Wirth, Journal of Functional Analysis 280 (2021).
corr_author: '1'
date_created: 2024-04-03T07:24:57Z
date_published: 2021-03-15T00:00:00Z
date_updated: 2025-06-25T07:41:05Z
day: '15'
department:
- _id: JaMa
doi: 10.1016/j.jfa.2020.108848
intvolume: '       280'
issue: '6'
keyword:
- Analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.jfa.2020.108848
month: '03'
oa: 1
oa_version: Published Version
publication: Journal of Functional Analysis
publication_identifier:
  eissn:
  - 1096-0783
  issn:
  - 0022-1236
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Uniqueness of form extensions and domination of semigroups
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 280
year: '2021'
...
---
_id: '10856'
abstract:
- lang: eng
  text: "We study the properties of the maximal volume k-dimensional sections of the
    n-dimensional cube [−1, 1]n. We obtain a first order necessary condition for a
    k-dimensional subspace to be a local maximizer of the volume of such sections,
    which we formulate in a geometric way. We estimate the length of the projection
    of a vector of the standard basis of Rn onto a k-dimensional subspace that maximizes
    the volume of the intersection. We \x1Cnd the optimal upper bound on the volume
    of a planar section of the cube [−1, 1]n , n ≥ 2."
acknowledgement: "The authors acknowledge the support of the grant of the Russian
  Government N 075-15-\r\n2019-1926. G.I.was supported also by the SwissNational Science
  Foundation grant 200021-179133. The authors are very grateful to the anonymous reviewer
  for valuable remarks."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Grigory
  full_name: Ivanov, Grigory
  id: 87744F66-5C6F-11EA-AFE0-D16B3DDC885E
  last_name: Ivanov
- first_name: Igor
  full_name: Tsiutsiurupa, Igor
  last_name: Tsiutsiurupa
citation:
  ama: Ivanov G, Tsiutsiurupa I. On the volume of sections of the cube. <i>Analysis
    and Geometry in Metric Spaces</i>. 2021;9(1):1-18. doi:<a href="https://doi.org/10.1515/agms-2020-0103">10.1515/agms-2020-0103</a>
  apa: Ivanov, G., &#38; Tsiutsiurupa, I. (2021). On the volume of sections of the
    cube. <i>Analysis and Geometry in Metric Spaces</i>. De Gruyter. <a href="https://doi.org/10.1515/agms-2020-0103">https://doi.org/10.1515/agms-2020-0103</a>
  chicago: Ivanov, Grigory, and Igor Tsiutsiurupa. “On the Volume of Sections of the
    Cube.” <i>Analysis and Geometry in Metric Spaces</i>. De Gruyter, 2021. <a href="https://doi.org/10.1515/agms-2020-0103">https://doi.org/10.1515/agms-2020-0103</a>.
  ieee: G. Ivanov and I. Tsiutsiurupa, “On the volume of sections of the cube,” <i>Analysis
    and Geometry in Metric Spaces</i>, vol. 9, no. 1. De Gruyter, pp. 1–18, 2021.
  ista: Ivanov G, Tsiutsiurupa I. 2021. On the volume of sections of the cube. Analysis
    and Geometry in Metric Spaces. 9(1), 1–18.
  mla: Ivanov, Grigory, and Igor Tsiutsiurupa. “On the Volume of Sections of the Cube.”
    <i>Analysis and Geometry in Metric Spaces</i>, vol. 9, no. 1, De Gruyter, 2021,
    pp. 1–18, doi:<a href="https://doi.org/10.1515/agms-2020-0103">10.1515/agms-2020-0103</a>.
  short: G. Ivanov, I. Tsiutsiurupa, Analysis and Geometry in Metric Spaces 9 (2021)
    1–18.
date_created: 2022-03-18T09:25:14Z
date_published: 2021-01-29T00:00:00Z
date_updated: 2023-08-17T07:07:58Z
day: '29'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.1515/agms-2020-0103
external_id:
  arxiv:
  - '2004.02674'
  isi:
  - '000734286800001'
file:
- access_level: open_access
  checksum: 7e615ac8489f5eae580b6517debfdc53
  content_type: application/pdf
  creator: dernst
  date_created: 2022-03-18T09:31:59Z
  date_updated: 2022-03-18T09:31:59Z
  file_id: '10857'
  file_name: 2021_AnalysisMetricSpaces_Ivanov.pdf
  file_size: 789801
  relation: main_file
  success: 1
file_date_updated: 2022-03-18T09:31:59Z
has_accepted_license: '1'
intvolume: '         9'
isi: 1
issue: '1'
keyword:
- Applied Mathematics
- Geometry and Topology
- Analysis
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 1-18
publication: Analysis and Geometry in Metric Spaces
publication_identifier:
  issn:
  - 2299-3274
publication_status: published
publisher: De Gruyter
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the volume of sections of the cube
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 9
year: '2021'
...
---
_id: '10549'
abstract:
- lang: eng
  text: We derive optimal-order homogenization rates for random nonlinear elliptic
    PDEs with monotone nonlinearity in the uniformly elliptic case. More precisely,
    for a random monotone operator on \mathbb {R}^d with stationary law (that is spatially
    homogeneous statistics) and fast decay of correlations on scales larger than the
    microscale \varepsilon >0, we establish homogenization error estimates of the
    order \varepsilon in case d\geqq 3, and of the order \varepsilon |\log \varepsilon
    |^{1/2} in case d=2. Previous results in nonlinear stochastic homogenization have
    been limited to a small algebraic rate of convergence \varepsilon ^\delta . We
    also establish error estimates for the approximation of the homogenized operator
    by the method of representative volumes of the order (L/\varepsilon )^{-d/2} for
    a representative volume of size L. Our results also hold in the case of systems
    for which a (small-scale) C^{1,\alpha } regularity theory is available.
acknowledgement: Open access funding provided by Institute of Science and Technology
  (IST Austria). SN acknowledges partial support by the Deutsche Forschungsgemeinschaft
  (DFG, German Research Foundation) – project number 405009441.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Julian L
  full_name: Fischer, Julian L
  id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
  last_name: Fischer
  orcid: 0000-0002-0479-558X
- first_name: Stefan
  full_name: Neukamm, Stefan
  last_name: Neukamm
citation:
  ama: Fischer JL, Neukamm S. Optimal homogenization rates in stochastic homogenization
    of nonlinear uniformly elliptic equations and systems. <i>Archive for Rational
    Mechanics and Analysis</i>. 2021;242(1):343-452. doi:<a href="https://doi.org/10.1007/s00205-021-01686-9">10.1007/s00205-021-01686-9</a>
  apa: Fischer, J. L., &#38; Neukamm, S. (2021). Optimal homogenization rates in stochastic
    homogenization of nonlinear uniformly elliptic equations and systems. <i>Archive
    for Rational Mechanics and Analysis</i>. Springer Nature. <a href="https://doi.org/10.1007/s00205-021-01686-9">https://doi.org/10.1007/s00205-021-01686-9</a>
  chicago: Fischer, Julian L, and Stefan Neukamm. “Optimal Homogenization Rates in
    Stochastic Homogenization of Nonlinear Uniformly Elliptic Equations and Systems.”
    <i>Archive for Rational Mechanics and Analysis</i>. Springer Nature, 2021. <a
    href="https://doi.org/10.1007/s00205-021-01686-9">https://doi.org/10.1007/s00205-021-01686-9</a>.
  ieee: J. L. Fischer and S. Neukamm, “Optimal homogenization rates in stochastic
    homogenization of nonlinear uniformly elliptic equations and systems,” <i>Archive
    for Rational Mechanics and Analysis</i>, vol. 242, no. 1. Springer Nature, pp.
    343–452, 2021.
  ista: Fischer JL, Neukamm S. 2021. Optimal homogenization rates in stochastic homogenization
    of nonlinear uniformly elliptic equations and systems. Archive for Rational Mechanics
    and Analysis. 242(1), 343–452.
  mla: Fischer, Julian L., and Stefan Neukamm. “Optimal Homogenization Rates in Stochastic
    Homogenization of Nonlinear Uniformly Elliptic Equations and Systems.” <i>Archive
    for Rational Mechanics and Analysis</i>, vol. 242, no. 1, Springer Nature, 2021,
    pp. 343–452, doi:<a href="https://doi.org/10.1007/s00205-021-01686-9">10.1007/s00205-021-01686-9</a>.
  short: J.L. Fischer, S. Neukamm, Archive for Rational Mechanics and Analysis 242
    (2021) 343–452.
date_created: 2021-12-16T12:12:33Z
date_published: 2021-06-30T00:00:00Z
date_updated: 2023-08-17T06:23:21Z
day: '30'
ddc:
- '530'
department:
- _id: JuFi
doi: 10.1007/s00205-021-01686-9
external_id:
  arxiv:
  - '1908.02273'
  isi:
  - '000668431200001'
file:
- access_level: open_access
  checksum: cc830b739aed83ca2e32c4e0ce266a4c
  content_type: application/pdf
  creator: cchlebak
  date_created: 2021-12-16T14:58:08Z
  date_updated: 2021-12-16T14:58:08Z
  file_id: '10558'
  file_name: 2021_ArchRatMechAnalysis_Fischer.pdf
  file_size: 1640121
  relation: main_file
  success: 1
file_date_updated: 2021-12-16T14:58:08Z
has_accepted_license: '1'
intvolume: '       242'
isi: 1
issue: '1'
keyword:
- Mechanical Engineering
- Mathematics (miscellaneous)
- Analysis
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 343-452
publication: Archive for Rational Mechanics and Analysis
publication_identifier:
  eissn:
  - 1432-0673
  issn:
  - 0003-9527
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optimal homogenization rates in stochastic homogenization of nonlinear uniformly
  elliptic equations and systems
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 242
year: '2021'
...
---
_id: '10862'
abstract:
- lang: eng
  text: We consider the sum of two large Hermitian matrices A and B with a Haar unitary
    conjugation bringing them into a general relative position. We prove that the
    eigenvalue density on the scale slightly above the local eigenvalue spacing is
    asymptotically given by the free additive convolution of the laws of A and B as
    the dimension of the matrix increases. This implies optimal rigidity of the eigenvalues
    and optimal rate of convergence in Voiculescu's theorem. Our previous works [4],
    [5] established these results in the bulk spectrum, the current paper completely
    settles the problem at the spectral edges provided they have the typical square-root
    behavior. The key element of our proof is to compensate the deterioration of the
    stability of the subordination equations by sharp error estimates that properly
    account for the local density near the edge. Our results also hold if the Haar
    unitary matrix is replaced by the Haar orthogonal matrix.
acknowledgement: Partially supported by ERC Advanced Grant RANMAT No. 338804.
article_number: '108639'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Zhigang
  full_name: Bao, Zhigang
  id: 442E6A6C-F248-11E8-B48F-1D18A9856A87
  last_name: Bao
  orcid: 0000-0003-3036-1475
- first_name: László
  full_name: Erdös, László
  id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
  last_name: Erdös
  orcid: 0000-0001-5366-9603
- first_name: Kevin
  full_name: Schnelli, Kevin
  last_name: Schnelli
citation:
  ama: Bao Z, Erdös L, Schnelli K. Spectral rigidity for addition of random matrices
    at the regular edge. <i>Journal of Functional Analysis</i>. 2020;279(7). doi:<a
    href="https://doi.org/10.1016/j.jfa.2020.108639">10.1016/j.jfa.2020.108639</a>
  apa: Bao, Z., Erdös, L., &#38; Schnelli, K. (2020). Spectral rigidity for addition
    of random matrices at the regular edge. <i>Journal of Functional Analysis</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.jfa.2020.108639">https://doi.org/10.1016/j.jfa.2020.108639</a>
  chicago: Bao, Zhigang, László Erdös, and Kevin Schnelli. “Spectral Rigidity for
    Addition of Random Matrices at the Regular Edge.” <i>Journal of Functional Analysis</i>.
    Elsevier, 2020. <a href="https://doi.org/10.1016/j.jfa.2020.108639">https://doi.org/10.1016/j.jfa.2020.108639</a>.
  ieee: Z. Bao, L. Erdös, and K. Schnelli, “Spectral rigidity for addition of random
    matrices at the regular edge,” <i>Journal of Functional Analysis</i>, vol. 279,
    no. 7. Elsevier, 2020.
  ista: Bao Z, Erdös L, Schnelli K. 2020. Spectral rigidity for addition of random
    matrices at the regular edge. Journal of Functional Analysis. 279(7), 108639.
  mla: Bao, Zhigang, et al. “Spectral Rigidity for Addition of Random Matrices at
    the Regular Edge.” <i>Journal of Functional Analysis</i>, vol. 279, no. 7, 108639,
    Elsevier, 2020, doi:<a href="https://doi.org/10.1016/j.jfa.2020.108639">10.1016/j.jfa.2020.108639</a>.
  short: Z. Bao, L. Erdös, K. Schnelli, Journal of Functional Analysis 279 (2020).
corr_author: '1'
date_created: 2022-03-18T10:18:59Z
date_published: 2020-10-15T00:00:00Z
date_updated: 2025-04-15T08:05:01Z
day: '15'
department:
- _id: LaEr
doi: 10.1016/j.jfa.2020.108639
ec_funded: 1
external_id:
  arxiv:
  - '1708.01597'
  isi:
  - '000559623200009'
intvolume: '       279'
isi: 1
issue: '7'
keyword:
- Analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1708.01597
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 258DCDE6-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '338804'
  name: Random matrices, universality and disordered quantum systems
publication: Journal of Functional Analysis
publication_identifier:
  issn:
  - 0022-1236
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spectral rigidity for addition of random matrices at the regular edge
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 279
year: '2020'
...
