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Shimada, Ryosuke
The HAKUBI Center for Advanced Research Program-Specific Assistant Professor
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Last Updated :2026/10/20
Basic Information
Email Address
Email Address
shimada.ryosuke.7f
kyoto-u.ac.jp
Academic Degree
Academic Resume (Undergraduate School/Majors)
Research History
- From Apr. 2025, To PresentJapan Society for the Promotion of Science, Overseas Research Fellow
- From Apr. 2025, To PresentUniversity of California, Berkeley, Department of Mathematics, Visiting Scholar
- From Apr. 2025, To PresentKyoto University, The Hakubi Center for Advanced Research / Department of Mathematics, Program-Specific Assistant Professor
- From May 2024, To Mar. 2025The University of Hong Kong, Department of Mathematics, Postdoctoral Fellow
- From Apr. 2024, To May 2024The University of Tokyo, Graduate School of Mathematical Sciences, Project Researcher
- From Aug. 2021, To Mar. 2024The University of Tokyo, Computer and Network Management Group, Research Assistant
- From Apr. 2021, To Mar. 2024Japan Society for the Promotion of Science, Research Fellow (DC1)
ID,URL
Researcher number
41022049External link
researchmap URL
list
Last Updated :2026/10/20
Research
Research Interests
Research Areas
Papers
- The number of Ekedahl-Oort strata intersecting the supersingular locus in the Siegel modular varietyRyosuke Shimada23 Sep. 2026
- Some generalizations of Oort's conjectureRyosuke Shimada; Teppei Takamatsu02 Sep. 2026
- On $\mathbb J$-strata with Parahoric Stabilizers in Affine Deligne-Lusztig VarietiesRyosuke Shimada02 Jun. 2026
- The Ekedahl–Oort stratification and the semi-module stratificationRyosuke ShimadaCanadian Journal of Mathematics, 2026, Peer-reviewed
- On the Supersingular Locus of the $\mathrm{GU}(2,n-2)$ Shimura VarietyRyosuke Shimada07 Oct. 2024
- On the supersingular locus of the Siegel modular variety of genus 3 or 4Ryosuke Shimada; Teppei TakamatsuAnnales de l’Institut Fourier (to appear), 28 Mar. 2024, Peer-reviewed
- Basic Loci of Positive Coxeter Type for $GL_n$Ryosuke Shimada20 Feb. 2024
- Semi-Modules and Crystal Bases via Affine Deligne-Lusztig VarietiesRyosuke ShimadaAdvances in Mathematics, 2024, Peer-reviewed
- On some simple geometric structure of affine Deligne-Lusztig varieties for $GL_n$Ryosuke ShimadaManuscripta Mathematica, 2024, Peer-reviewed
- Affine Deligne-Lusztig Varieties of Positive Coxeter TypeFelix Schremmer; Ryosuke Shimada; Qingchao Yu05 Dec. 2023
- Geometric Structure of Affine Deligne-Lusztig Varieties for $GL_3$Ryosuke ShimadaJournal of Algebra, 2023, Peer-reviewed
Misc.
Presentations
- On J-strata in affine Deligne-Lusztig varietiesRyosuke ShimadaNumber Theory Seminar, Kyoto University, 12 Jun. 2026
- Beyond the Chen-Zhu conjectureRyosuke ShimadaNCTS Number Theory Seminar, National Center for Theoretical Sciences, 30 Jan. 2026
- Beyond the Chen-Zhu conjectureRyosuke ShimadaRTG Arithmetic Geometry, Number Theory and Representation Theory Seminar, University of California, Berkeley, 01 Dec. 2025
- Beyond the Chen-Zhu conjectureRyosuke ShimadaThe 2nd MMS Workshop for Young Researchers, Kyoto University, 21 Nov. 2025
- Shimura varieties and Kashiwara crystalRyosuke ShimadaCombinatorics summer school, Kamenoi Hotel, 30 Sep. 2025
- Introduction to affine Deligne-Lusztig varietiesRyosuke ShimadaYNU Algebra Seminar, Yokohama National University, 21 May 2025
- On the Chen-Zhu conjectureRyosuke ShimadaWorkshop on Affine Deligne-Lusztig varieties and Related topics, SCMS, 06 Mar. 2025
- On the Supersingular Locus of the GU(2, n-2) Shimura VarietyRyosuke ShimadaAlgebraic Number Theory and Related Topics 2024, RIMS, 09 Jan. 2025
- On the Supersingular Locus of the GU(2, n-2) Shimura VarietyRyosuke ShimadaWorkshop on arithmetic geometry, The University of Hong Kong, 05 Dec. 2024
- On a group-theoretic approach to the supersingular locus of Shimura varietiesRyosuke ShimadaTheory and Applications of Supersingular Curves and Supersingular Abelian Varieties II, RIMS, 08 Nov. 2024
- Basic loci of positive Coxeter typeRyosuke ShimadaThe 23rd Sendai-Hiroshima Workshop on Number Theory, Tohoku University, 09 Jul. 2024
- Beyond the cases of Coxeter typeRyosuke ShimadaMathematical Society of Japan Spring Meeting 2024, Osaka Metropolitan University, 18 Mar. 2024
- Beyond the cases of Coxeter typeRyosuke ShimadaMittagsseminar zur Arithmetik, University of Münster, 07 Nov. 2023
- Beyond the cases of Coxeter typeRyosuke ShimadaResearch Training Group Seminar, University of Duisburg-Essen, 26 Oct. 2023
- Crystal bases and affine Deligne-Lusztig varietiesRyosuke ShimadaThe 22nd Hiroshima-Sendai Workshop on Number Theory, Hiroshima University, 14 Jul. 2023
- Crystal bases and affine Deligne-Lusztig varietiesRyosuke ShimadaAlgebraic Lie Theory and Representation Theory 2023, Tokyo Institute of Technology, 14 May 2023
- Semi-modules and crystal bases via affine Deligne-Lusztig varietiesRyosuke ShimadaThe 19th Mathematics Conference for Young Researchers, Hokkaido University, 07 Mar. 2023
- Semi-modules and crystal bases via affine Deligne-Lusztig varietiesRyosuke ShimadaBerkeley Number Theory Colloquium, University of California, Berkeley, 15 Feb. 2023
- Semi-modules and crystal bases via affine Deligne-Lusztig varietiesRyosuke ShimadaLie Groups and Representation Theory Seminar, University of Maryland, 16 Nov. 2022
- Semi-modules and crystal bases via affine Deligne-Lusztig varietiesRyosuke ShimadaGAUS-Seminar, Technische Universität Darmstadt, 20 Oct. 2022
- Semi-modules and crystal bases via affine Deligne-Lusztig varietiesRyosuke ShimadaNumber Theory Seminar, Hokkaido University, 21 Sep. 2022
- On some simple geometric structure of affine Deligne-Lusztig varieties for GL_nRyosuke ShimadaMathematical Society of Japan Autumn Meeting 2022, Hokkaido University, 15 Sep. 2022
- On some simple geometric structure of affine Deligne-Lusztig varieties for GL_nRyosuke ShimadaNumber Theory Seminar, Kyoto University, 27 May 2022
- Geometric structure of affine Deligne-Lusztig varieties for GL_3Ryosuke ShimadaMathematical Society of Japan Spring Meeting 2022, Saitama University (online), 31 Mar. 2022
- Geometric structure of affine Deligne-Lusztig varietiesRyosuke ShimadaThe 18th Mathematics Conference for Young Researchers, Hokkaido University (online), 03 Mar. 2022
- Geometric structure of affine Deligne-Lusztig varieties for GL_3Ryosuke ShimadaThe 20th Hiroshima-Sendai Workshop on Number Theory, Hiroshima University (online), 13 Jul. 2021
- Geometric structure of affine Deligne-Lusztig varieties for GL_3Ryosuke ShimadaNumber Theory Seminar, The University of Tokyo (online), 26 May 2021
