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2022 Fiscal Year Annual Research Report

Fusion of Birational Geometry and Theory of Periods;Deepening and Exploration of Mirror Symmetry Mathematics

Research Project

Project/Area Number 21H04994
Research InstitutionOsaka University

Principal Investigator

高橋 篤史  大阪大学, 大学院理学研究科, 教授 (50314290)

Co-Investigator(Kenkyū-buntansha) 藤野 修  京都大学, 理学研究科, 教授 (60324711)
入谷 寛  京都大学, 理学研究科, 教授 (20448400)
小西 由紀子  津田塾大学, 学芸学部, 教授 (30505649)
安田 健彦  大阪大学, 大学院理学研究科, 教授 (30507166)
大川 新之介  大阪大学, 大学院理学研究科, 准教授 (60646909)
岩木 耕平  東京大学, 大学院数理科学研究科, 准教授 (00750598)
神田 遼  大阪公立大学, 大学院理学研究科, 准教授 (50748324)
Project Period (FY) 2021-07-05 – 2026-03-31
Keywords幾何学 / 代数学 / 数理物理学 / ミラー対称性 / 双有理幾何学
Outline of Annual Research Achievements

代表者高橋は,昨年度に引き続きD型一般ルート系およびHurwitz空間のFrobenius構造の研究を行った.また,Lyashko-LooijengaL写像の次数と消滅サイクルの格別基底の数の一致に関する研究を開始した.
分担者藤野は高次元代数多様体について,とくにベクトル束の弱正値性について研究を行った.分担者入谷は同変量子コホモロジーとGIT商の量子コホモロジーとを結びつけるTelemanの予想について研究を行い,爆発の下での量子コホモロジー(D加群)の分解定理が得られた.分担者小西は昨年度に引き続き有限複素鏡映群の軌道空間上のnatural Saito structure について研究を行い,有限コクセター群における佐竹氏の結果を有限複素鏡映群に拡張し,regular元の固有空間分解によって定まる座標系(good basic invariants)とnatural Saito structureの平坦座標系が一致することを示した.分担者安田健彦は,Darda氏との共同研究においてトーリック・スタック上の有理点の分布に関する公式を証明した.分担者大川は極小代数曲面の導来圏についての研究を行った.そこでirregularityが正の場合に半直交分解が存在しないことを証明した.また,orbifold curveの退化についての研究を行った.分担者岩木は,位相的漸化式の分配函数のリサージェンス性に関する研究を行なった.分担者神田はAlex Chirvasitu氏とS. Paul Smith氏と共同で,Feigin-Odesskii楕円代数に付随するポアソン構造に関する研究を行い,そのポアソン構造が引き起こす射影空間の分割に関する証明を改良した.
ミラー対称性に関する国際研究集会やセミナー・勉強会等を開催し,最新の研究成果についての講演をもとに,参加者と活発な研究交流を行った.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

研究代表者・分担者のいずれも順調に個別・共同研究を進めることができており,研究成果を取りまとめて発表することができている.また,雇用した特任教員・研究員についても同様である.開催した国際研究集会や勉強会・セミナー等も非常に充実した内容であり,活発な研究交流がなされ,当該分野の進展に大きく貢献するものとなっている.

Strategy for Future Research Activity

研究計画は順調に進捗しているので,現在の体制・方法を維持する.以前国際情勢は混沌としており国際交流の困難は継続しているものの,国際研究集会での研究発表や,シード期にある研究を発展させるための国際共同研究を一層積極的に再開させてゆく.得られた成果を取りまとめつつ新たな研究の萌芽を成長させることで,研究を推進させる.

  • Research Products

    (48 results)

All 2024 2023 2022 Other

All Int'l Joint Research (6 results) Journal Article (9 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 9 results,  Open Access: 7 results) Presentation (32 results) (of which Int'l Joint Research: 24 results,  Invited: 32 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Southern California/University at Buffalo/University of Washington(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      University of Southern California/University at Buffalo/University of Washington
  • [Int'l Joint Research] ハノーファー大学/ミュンヘン工科大学(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      ハノーファー大学/ミュンヘン工科大学
  • [Int'l Joint Research] バーゼル大学/University of Geneva(スイス)

    • Country Name
      SWITZERLAND
    • Counterpart Institution
      バーゼル大学/University of Geneva
  • [Int'l Joint Research] Sheffield University/Loughborough University(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      Sheffield University/Loughborough University
  • [Int'l Joint Research] Universidad Autonoma de Ciudad Juarez/Universidad Nacional Auonoma de Mexico(メキシコ)

    • Country Name
      MEXICO
    • Counterpart Institution
      Universidad Autonoma de Ciudad Juarez/Universidad Nacional Auonoma de Mexico
  • [Int'l Joint Research]

    • # of Other Countries
      10
  • [Journal Article] Positivity of extensions of vector bundles2024

    • Author(s)
      Ejiri Sho、Fujino Osamu、Iwai Masataka
    • Journal Title

      Mathematische Zeitschrift

      Volume: 306 Pages: -

    • DOI

      10.1007/s00209-023-03428-x

    • Peer Reviewed / Open Access
  • [Journal Article] Orbifold Jacobian algebras for invertible polynomials2023

    • Author(s)
      Basalaev Alexey、Takahashi Atsushi、Werner Elisabeth
    • Journal Title

      Journal of Singularities

      Volume: 26 Pages: 92~127

    • DOI

      10.5427/jsing.2023.26f

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gamma classes and quantum cohomology2023

    • Author(s)
      Iritani Hiroshi
    • Journal Title

      International Congress of Mathematicians

      Volume: 4 Pages: 2552~2574

    • DOI

      10.4171/icm2022/156

    • Peer Reviewed / Open Access
  • [Journal Article] Moduli of formal torsors II2023

    • Author(s)
      Tonini Fabio、Yasuda Takehiko
    • Journal Title

      Annales de l'Institut Fourier

      Volume: 73 Pages: 511~558

    • DOI

      10.5802/aif.3533

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Open problems in the wild McKay correspondence and related fields2023

    • Author(s)
      Yasuda Takehiko
    • Journal Title

      Adv. Stud. Pure Math

      Volume: 88 Pages: 279~303

    • DOI

      10.2969/aspm/08810279

    • Peer Reviewed
  • [Journal Article] The isomorphism problem of projective schemes and related algorithmic problems2023

    • Author(s)
      Yasuda Takehiko
    • Journal Title

      International Journal of Algebra and Computation

      Volume: 33 Pages: 893~926

    • DOI

      10.1142/S021819672350039X

    • Peer Reviewed
  • [Journal Article] Torsors for finite group schemes of bounded height2023

    • Author(s)
      Darda Ratko、Yasuda Takehiko
    • Journal Title

      Journal of the London Mathematical Society

      Volume: 108 Pages: 1275~1331

    • DOI

      10.1112/jlms.12780

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Elliptic R-matrices and Feigin and Odesskii’s elliptic algebras2023

    • Author(s)
      Chirvasitu Alex、Kanda Ryo、Smith S. Paul
    • Journal Title

      Selecta Mathematica

      Volume: 29 Pages: 31~31

    • DOI

      10.1007/s00029-023-00827-0

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Projective discrete modules over profinite groups2023

    • Author(s)
      Chirvasitu Alexandru、Kanda Ryo
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 227 Pages: 107260~107260

    • DOI

      10.1016/j.jpaa.2022.107260

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Frobenius manifolds for generalized root systems of type D2023

    • Author(s)
      TAKAHASHI, Atsushi
    • Organizer
      Homological Mirror Symmetry
    • Int'l Joint Research / Invited
  • [Presentation] Frobenius manifolds for generalized root systems of type D2023

    • Author(s)
      TAKAHASHI, Atsushi
    • Organizer
      QSMS workshop on symplectic geometry and related topics
    • Int'l Joint Research / Invited
  • [Presentation] 可逆多項式のホモロジー的ミラー対称性とBrigeland安定性条件2023

    • Author(s)
      髙橋 篤史
    • Organizer
      パーシステントホモロジー と表現論
    • Invited
  • [Presentation] BPS invariants and Holomorphic Anomaly Equations, Rethinking old results2023

    • Author(s)
      髙橋 篤史
    • Organizer
      位相的漸化式と正則アノマリー方程式
    • Invited
  • [Presentation] Variation of mixed Hodge structure and its applications2023

    • Author(s)
      藤野 修
    • Organizer
      K3, Enriques Surfaces and Related Topics
    • Invited
  • [Presentation] Stringy invariants and finiteness of local fundamental groups2023

    • Author(s)
      YASUDA, Takehiko
    • Organizer
      Non-Archimedean methods in arithmetic and geometry
    • Int'l Joint Research / Invited
  • [Presentation] Blowing down noncommutative cubic surfaces2023

    • Author(s)
      OKAWA, Shinnosuke
    • Organizer
      2023 NCTS Higher Dimensional Algebraic Geometry Mini-courses and Workshop
    • Int'l Joint Research / Invited
  • [Presentation] Semiorthogonal indecomposability of irregular surfaces2023

    • Author(s)
      OKAWA, Shinnosuke
    • Organizer
      The 1st Algebraic geometry Atami symposium
    • Int'l Joint Research / Invited
  • [Presentation] Blowing down noncommutative cubic surfaces2023

    • Author(s)
      OKAWA, Shinnosuke
    • Organizer
      CURRENT TRENDS IN THE CATEGORICAL APPROACH TO ALGEBRAIC AND SYMPLECTIC GEOMETRY
    • Int'l Joint Research / Invited
  • [Presentation] Series expansion of accessory parameters of confluent Heun equations with a ramified irregular singular point2023

    • Author(s)
      岩木 耕平
    • Organizer
      Workshop on Accessory Parameters
    • Invited
  • [Presentation] On generalized root systems of type D2022

    • Author(s)
      TAKAHASHI, Atsushi
    • Organizer
      Calabi-Yau Manifolds and Mirror Symmetry - Past, Present, and Future
    • Int'l Joint Research / Invited
  • [Presentation] Maximally-graded matrix factorizations and the Gamma integral structure for an invertible polynomial of chain type2022

    • Author(s)
      TAKAHASHI, Atsushi
    • Organizer
      Research Seminar Algebraic Geometry
    • Int'l Joint Research / Invited
  • [Presentation] A primitive form for the Weierstrass p-function2022

    • Author(s)
      TAKAHASHI, Atsushi
    • Organizer
      Online seminar, Representation Theory of Algebras Team of Xiamen University
    • Int'l Joint Research / Invited
  • [Presentation] Adjunction and inversion of adjunction2022

    • Author(s)
      FUJINO, Osamu
    • Organizer
      Algebraic Geometry Seminar at YMSC
    • Int'l Joint Research / Invited
  • [Presentation] Introduction to the Iitaka conjecture, Part 1 - 42022

    • Author(s)
      FUJINO, Osamu
    • Organizer
      2022 SCMS Algebraic Geometry Summer School
    • Int'l Joint Research / Invited
  • [Presentation] Vanishing theorems for projective morphisms between complex analytic spaces2022

    • Author(s)
      FUJINO, Osamu
    • Organizer
      JAMI 2022: Higher Dimensional Algebraic Geometry
    • Int'l Joint Research / Invited
  • [Presentation] Equivariant quantum cohomology and its applications2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Mirror Symmetry Seminar
    • Int'l Joint Research / Invited
  • [Presentation] Approaches to the gamma conjecture2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Periods in mirror symmetry
    • Int'l Joint Research / Invited
  • [Presentation] Equivariant quantum cohomology and Fourier transformation2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Geometry, Statistics & Dynamics. Celebrating 20 years of UK-Japan Winter Schools
    • Int'l Joint Research / Invited
  • [Presentation] Equivariant quantum cohomology and its applications2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Calabi-Yau manifolds and mirror symmetry - Past, Present and Future
    • Int'l Joint Research / Invited
  • [Presentation] On decompositions of quantum cohomology D-modules2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Virtual ICM 2022
    • Int'l Joint Research / Invited
  • [Presentation] Fourier transformation in GLSM2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Geometry of GLSMs
    • Int'l Joint Research / Invited
  • [Presentation] On decompositions of quantum cohomology D-modules2022

    • Author(s)
      IRITANI, Hiroshi
    • Organizer
      Japan forum associated with ICM
    • Invited
  • [Presentation] Batyrev-Manin conjecture for Deligne-Mumford stacks2022

    • Author(s)
      YASUDA, Takehiko
    • Organizer
      Session "Arithmetic Geometry: Theory and Computation" of PRIMA Congress
    • Int'l Joint Research / Invited
  • [Presentation] Orbifold pseudo-effective cones2022

    • Author(s)
      YASUDA, Takehiko
    • Organizer
      Rationality, Moduli Spaces, and Related Topics
    • Int'l Joint Research / Invited
  • [Presentation] Another height function for Deligne-Mumford stacks via twisted sectors2022

    • Author(s)
      YASUDA, Takehiko
    • Organizer
      Geometry of Arithmetic Statistics (Simons Symposium)
    • Int'l Joint Research / Invited
  • [Presentation] The reconstruction theorem for AS-regular 3-dimensional cubic Z-algebras2022

    • Author(s)
      OKAWA, Shinnosuke
    • Organizer
      Interactions between Algebraic Geometry and Noncommutative Algebra
    • Int'l Joint Research / Invited
  • [Presentation] Topological recursion, BPS structure and Painleve τ-function2022

    • Author(s)
      IWAKI, Kohei
    • Organizer
      Workshop on Mirror symmetry and Related Topics, Kyoto 2022
    • Int'l Joint Research / Invited
  • [Presentation] Voros coefficients of isomonodromy systems associated with the Painleve equations and BPS invariants2022

    • Author(s)
      IWAKI, Kohei
    • Organizer
      Painleve Equations : From Classical to Modern Analysis
    • Int'l Joint Research / Invited
  • [Presentation] Voros coefficients of isomonodromy systems associated with the Painleve equations and BPS invariants2022

    • Author(s)
      岩木 耕平
    • Organizer
      超局所解析と漸近解析の展望
    • Invited
  • [Presentation] Projective objects in the category of discrete modules over a profinite group2022

    • Author(s)
      神田 遼
    • Organizer
      第54回環論および表現論シンポジウム
    • Invited
  • [Presentation] Projective objects in the category of discrete modules over a profinite group2022

    • Author(s)
      神田 遼
    • Organizer
      第33回可換環論セミナー
    • Invited
  • [Funded Workshop] Workshop on Mirror symmetry and Related Topics, Kyoto 20222022

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Published: 2024-12-25  

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