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2018 Fiscal Year Annual Research Report

格子、保型形式とモジュライ空間の総合的研究

Research Project

Project/Area Number 15H05738
Research InstitutionNagoya University

Principal Investigator

金銅 誠之  名古屋大学, 多元数理科学研究科, 教授 (50186847)

Co-Investigator(Kenkyū-buntansha) 島田 伊知朗  広島大学, 理学研究科, 教授 (10235616)
江口 徹  立教大学, 理学部, 特定課題研究員 (20151970) [Withdrawn]
小木曽 啓示  東京大学, 大学院数理科学研究科, 教授 (40224133)
伊山 修  名古屋大学, 多元数理科学研究科, 教授 (70347532)
馬 昭平  東京工業大学, 理学院, 准教授 (80633255)
菅野 浩明  名古屋大学, 多元数理科学研究科, 教授 (90211870)
Project Period (FY) 2015-05-29 – 2020-03-31
Keywordsエンリケス曲面 / K3 曲面 / ジーゲルモジュラー形式 / 共形場理論 / 自己同型 / エントロピー / 傾理論
Outline of Annual Research Achievements

研究代表者は標数2、Artin 不変量1の超特異K3曲面を標準被覆に持つエンリケス曲面は3種類に限ること、およびそれらの具体的な構成を与えた。分担者 馬はジーゲルモジュラー多様体上の普遍アーベル多様体やそのコンパクト化上の多重標準形式とジーゲルモジュラー形式の対応を与え、久我族の小平次元の評価を得た。分担者 菅野は複素 Chern-Simons 理論の正準量子化から導かれる U(1) 同変な変形 Verlinde 代数とある種の 4 次元超共形場理論の超共形指数が定める2次元位相的場の理論の対応関係に関して研究を行った。分担者 島田は超越格子のディスクリミナントが小さい特異K3曲面上のエンリケス対合を分類し、さらに階数10の双曲的ユニモジュラー偶格子の交点形式を2倍にしたものから階数26の双曲的ユニモジュラー偶格子への埋め込みを分類した。分担者 小木曽は複素Enriques曲面の自己同型の正エントロピーの最小値を決定し、さらに素体上超越次数が正である任意の奇素数標数の代数閉体上、K3曲面と双有理な滑らかな射影代数曲面でその全自己同型群が非有限生成であるものの存在を示した。また、素体上超越次数が零である任意奇素数標数の代数閉体上では、K3曲面と双有理な滑らかな射影代数曲面の全自己同型群は常に有限生成であることも示した。近年のCohen-Macaulay表現論は、導来圏・三角圏を制御する傾理論の影響を大きく受けて発展していが、分担者 伊山は主要な研究成果に関するサーベイをICM 2018のproceedingsに執筆した。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

3年目終了時の進捗状況調査でも書いたが、自己同型群の研究、保形形式論を用いたモジュライ空間の研究、マシュームーンシャインの研究等で着実に成果があがってきている。なかでも有限自己同型群を持つエンリケス曲面の任意標数での分類問題に最終決着をつけるという予想以上の成果を得ており、上の自己評価とした。
ただし分担者 江口徹氏が急逝なっさったことにより、氏が担当していた方面の研究の重点をエンリケス曲面とリーチ格子の研究に重点をおくこととした。

Strategy for Future Research Activity

自己同型群に関しては、Brandhorst-島田の発見したエンリケス曲面のネフ錐内の 17 種類の多面体の幾何学的研究を進め、エンリケス曲面の自己同型群の分類に迫る。複素Enriques曲面と双有理な滑らかな射影曲面の全自己同型群、滑らかな有理曲面の離散的全自己同型群、それぞれについてその非有限生成性を考察する。また標数2の場合のクンマー曲面の研究を完成させる。モジュライ空間に関しては、普遍的K3曲面上の多重標準形式と19次元の直交型モジュラー形式の対応を考察する。数理物理の観点から、量子トロイダル代数のベクトル表現の絡み作用素の相関関数と3次元超対称ゲージ理論の正則ブロックの関係を、これらが満たす差分方程式の観点から取り組み、また表現論の観点からは、傾理論, 団傾理論, 変異, 非可換特異点解消に関する諸問題に取り組む。

  • Research Products

    (58 results)

All 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (20 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 19 results,  Open Access: 6 results) Presentation (29 results) (of which Int'l Joint Research: 22 results,  Invited: 29 results) Remarks (1 results) Funded Workshop (2 results)

  • [Int'l Joint Research] Dusserdolf University/Bonn University/Hannover University(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      Dusserdolf University/Bonn University/Hannover University
    • # of Other Institutions
      3
  • [Int'l Joint Research] Lebedev Physics Institute(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      Lebedev Physics Institute
  • [Int'l Joint Research] Vietnam National University of Science(ベトナム)

    • Country Name
      VIET NAM
    • Counterpart Institution
      Vietnam National University of Science
  • [Int'l Joint Research] The University of Kansas/The University of Utah/North Carolina State University(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      The University of Kansas/The University of Utah/North Carolina State University
  • [Int'l Joint Research] University of Glasgow/University of East Anglia(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      University of Glasgow/University of East Anglia
  • [Int'l Joint Research]

    • # of Other Countries
      2
  • [Journal Article] Modular forms of weight 3m and elliptic modular surface2019

    • Author(s)
      Shouhei Ma
    • Journal Title

      Proceedings of the Japan Academy, Series A

      Volume: 95 Pages: 31--36

    • DOI

      doi:10.3792/pjaa.95.31

  • [Journal Article] Auslander-Gorenstein algebras from Serre-formal algebras via replication2019

    • Author(s)
      A. Chan, O. Iyama, R. Marczinzik
    • Journal Title

      Adv. Math.

      Volume: 345 Pages: 222--262

    • DOI

      DOI: 10.1016/j.aim.2019.01.010

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Noncommutative resolutions using syzygies2019

    • Author(s)
      H. Dao, O. Iyama, S. Iyengar, R. Takahashi, M. Wemyss, Y. Yoshino
    • Journal Title

      Bull. Lond. Math. Soc.

      Volume: 51 Pages: 43--48

    • DOI

      DOI: 10.1112/blms.12210

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Equivariant U(N) Verlinde algebra from Bethe/Gauge correspondence2019

    • Author(s)
      H.Kanno, K.Sugiyama and Y.Yoshida
    • Journal Title

      JHEP

      Volume: 1902 Pages: 097

    • DOI

      doi 10.1007/JHEP02(2019)097

    • Peer Reviewed / Open Access
  • [Journal Article] On an Enriques surface associated with a quartic Hessian surface.2019

    • Author(s)
      I. Shimada
    • Journal Title

      Canad. J. Math.

      Volume: 71 Pages: 213--246

    • DOI

      10.1307/mmj/1528941621

    • Peer Reviewed / Open Access
  • [Journal Article] A surface with discrete and non-finitely generated automorphism group2019

    • Author(s)
      T.-C. Dinh, K. Oguiso
    • Journal Title

      Duke Math. J.

      Volume: 168 Pages: 941--966

    • DOI

      DOI 10.1215/00127094-2018-0054

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pisot units, Salem numbers and higher dimensional projective manifolds with primitive automorphisms of positive entropy" Int. Math. Res. Not. IMRN (2019) No5 1373--1400, https://2019

    • Author(s)
      K. Oguiso
    • Journal Title

      Int. Math. Res. Not.

      Volume: IMRN (2019) No5 Pages: 1373--1400

    • DOI

      doi.org/10.1093/imrn/rnx142

    • Peer Reviewed
  • [Journal Article] τ-tilting finite algebras, bricks and g-vectors2019

    • Author(s)
      Laurent Demonet, Osamu Iyama, Gustavo Jasso
    • Journal Title

      Int. Math. Res. Not.

      Volume: 2019 Pages: 852--892

    • DOI

      https://doi.org/10.1093/imrn/rnx135

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tilting modules over Auslander--Gorenstein algebras2019

    • Author(s)
      Osamu Iyama, Xiaojin Zhang
    • Journal Title

      Pacific J. Math.

      Volume: 298 Pages: 399--416

    • DOI

      10.2140/pjm.2019.298.399

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On Enriques surfaces in characteristic 2 with a finite group of automorphisms2018

    • Author(s)
      T. Katsura, S. Kondo
    • Journal Title

      J. Algebraic Geometry

      Volume: 27 Pages: 173 -- 202

    • DOI

      dx.doi.org/10.1090/jag/697

    • Peer Reviewed
  • [Journal Article] On the Kodaira dimension of orthogonal modular varieties2018

    • Author(s)
      S. Ma
    • Journal Title

      Inventiones Mathematicae

      Volume: 212 Pages: 859--911

    • DOI

      doi: 10.1007/s00222-017-0781-x

    • Peer Reviewed
  • [Journal Article] Equivariant Gauss sum of finite quadratic forms2018

    • Author(s)
      S. Ma
    • Journal Title

      Forum Mathematicum

      Volume: 30 Pages: 1029--1047

    • DOI

      doi: 10.1515/forum-2017-0070

    • Peer Reviewed
  • [Journal Article] A non-torus link from topological vertex2018

    • Author(s)
      H.Awata, H.Kanno, A.Mironov, Al.Morozov and An.Morozov
    • Journal Title

      Phys. Rev. D

      Volume: 98 Pages: 046018

    • DOI

      doi 10.1103/PhysRevD.98.046018

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Connected components of the moduli of elliptic K3 surfaces.2018

    • Author(s)
      I. Shimada
    • Journal Title

      Michigan Math. J.

      Volume: 67 Pages: 511--559

    • DOI

      doi:10.1307/mmj/1528941621

    • Peer Reviewed / Open Access
  • [Journal Article] On Edge's correspondence associated with .222.2018

    • Author(s)
      I. Shimada
    • Journal Title

      Eur. J. Math.

      Volume: 4 Pages: 399--412

    • DOI

      10.1007/s40879-017-0183-z

    • Peer Reviewed / Open Access
  • [Journal Article] Ichiro Shimada. An even extremal lattice of rank 64.2018

    • Author(s)
      I. Shimada
    • Journal Title

      J. Number Theory

      Volume: 185 Pages: 1--15

    • DOI

      10.1016/j.jnt.2017.10.028

    • Peer Reviewed / Open Access
  • [Journal Article] A criterion for the primitivity of a birational automorphism of a Calabi-Yau manifold and an application2018

    • Author(s)
      K. Oguiso
    • Journal Title

      Math. Res. Lett.

      Volume: 25 Pages: 188--198

    • Peer Reviewed
  • [Journal Article] On steady non-commutative crepant resolutions2018

    • Author(s)
      Osamu Iyama, Yusuke Nakajima
    • Journal Title

      J. Noncommut. Geom.

      Volume: 12 Pages: 457--471

    • DOI

      10.4171/JNCG/283

    • Peer Reviewed
  • [Journal Article] Lattice structure of Weyl groups via representation theory of preprojective algebras2018

    • Author(s)
      Osamu Iyama, Nathan Reading, Idun Reiten, Hugh Thomas
    • Journal Title

      Compos. Math.

      Volume: 154 Pages: 1269--1305

    • DOI

      doi.org/10.1112/S0010437X18007078

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Silting reduction and Calabi--Yau reduction of triangulated categories2018

    • Author(s)
      Osamu Iyama, Dong Yang
    • Journal Title

      Trans. Amer. Math. Soc.

      Volume: 370 Pages: 7861--7898

    • DOI

      https://doi.org/10.1090/tran/7213

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] K3 surfaces and ball quotients2019

    • Author(s)
      金銅誠之
    • Organizer
      Ball Quotient Surfaces and Lattices 25 February-1 March, 2019, CIRM, Frnace
    • Int'l Joint Research / Invited
  • [Presentation] 3d holomorphic blocks from the intertwiner of quantum toroidal algebra2019

    • Author(s)
      菅野浩明
    • Organizer
      Representation theory, gauge theory and integrable systems, Kavli IPMU, Kashiwa, Japan
    • Int'l Joint Research / Invited
  • [Presentation] Enriques involutions on singular K3 surfaces of small discriminants (joint work with Davide Cesare Veniani)2019

    • Author(s)
      島田伊知朗
    • Organizer
      Arithmetic and Algebraic Geometry 2019, University of Tokyo
    • Int'l Joint Research / Invited
  • [Presentation] A surface in odd characteristic with discrete and non-finitely generated automorphism group2019

    • Author(s)
      小木曽啓示
    • Organizer
      Higher Dimensional Arithmetic Geometry, Kumamoto University
    • Invited
  • [Presentation] Classification of Enriques surfaces with finite automorphism group in characteristic 22018

    • Author(s)
      金銅誠之
    • Organizer
      Crystals and Geometry in Characteristic p, Munich, Germany
    • Int'l Joint Research / Invited
  • [Presentation] 1-dimensional families of Enriques surfaces in characteristic 2 covered by the supersingular K3 surface with Artin invariant 12018

    • Author(s)
      金銅誠之
    • Organizer
      Automorphic Forms and Algebraic Geometry May , Steklov Math. Inst., St. Petersburg
    • Int'l Joint Research / Invited
  • [Presentation] Enriques 曲面の魅力:モジュライと自己同型2018

    • Author(s)
      金銅誠之
    • Organizer
      東京工業大学大岡山談話会
    • Invited
  • [Presentation] Borcherds products and K3 surfaces2018

    • Author(s)
      金銅誠之
    • Organizer
      Working Workshop on Calabi-Yau Varieties and Related Topics, Gakushuin University
    • Int'l Joint Research / Invited
  • [Presentation] Classification of Enriques surfaces in characteristic 2 covered by the supersingular K3 surface with Artin invariant 12018

    • Author(s)
      金銅誠之
    • Organizer
      Differential, Algebraic and Topological Methods in Complex Algebraic Geometry, Cetraro, Italy
    • Int'l Joint Research / Invited
  • [Presentation] Enriques surfaces with finite automorphism group2018

    • Author(s)
      金銅誠之
    • Organizer
      2018 joint meeting of the Korean Mathematical Society and the German Mathematical Society, Seoul, Korea
    • Int'l Joint Research / Invited
  • [Presentation] Enriques surfaces and the Leech lattice2018

    • Author(s)
      金銅誠之
    • Organizer
      Workshop on Birational Geometry and Related Topics, Shanghai Center for Mathematical Sciences, Fudan University, Shanghai, China
    • Int'l Joint Research / Invited
  • [Presentation] Enriques 曲面に魅せられて2018

    • Author(s)
      金銅誠之
    • Organizer
      岡シンポジウム(奈良女子大学)
    • Invited
  • [Presentation] Siegel modular forms and universal abelian variety2018

    • Author(s)
      馬昭平
    • Organizer
      Automorphic forms and Algebraic geometry, PDMI, St. Petersburg, Russia
    • Int'l Joint Research / Invited
  • [Presentation] Universal abelian variety and Siegel modular forms2018

    • Author(s)
      馬昭平
    • Organizer
      Japanese-European symposium on symplectic varieties and moduli spaces, 東京理科大学
    • Int'l Joint Research / Invited
  • [Presentation] The elliptic modular surface of level 4 and its reduction modulo 32018

    • Author(s)
      島田伊知朗
    • Organizer
      Algebraic Geometry in Positive Characteristic and Related Topics, , University of Tokyo
    • Int'l Joint Research / Invited
  • [Presentation] The elliptic modular surface of level 4 and its reduction modulo 32018

    • Author(s)
      島田伊知朗
    • Organizer
      Working Workshop on Calabi-Yau Varieties and Related Topics, Gakushuin University
    • Int'l Joint Research / Invited
  • [Presentation] A surface in odd characteristic with discrete and non- finitely generated automorphism group2018

    • Author(s)
      小木曽啓示
    • Organizer
      Algebraic Geometry in Positive Characteristic and Related Topics in honor of the 70th birthday of Professor Toshiyuki Katsura, Tokyo, Japan
    • Int'l Joint Research / Invited
  • [Presentation] Minimum positive entropy of complex Enriques surface automorphisms2018

    • Author(s)
      小木曽啓示
    • Organizer
      Differential, Algebraic and Topological Methods in Complex Algebraic Geometry, Grand Hotel San Michele, Cetraro, Italy
    • Int'l Joint Research / Invited
  • [Presentation] Smooth complex surfaces with discrete and non-finitely generated automorphism group2018

    • Author(s)
      小木曽啓示
    • Organizer
      Oberwolfach, Germany
    • Int'l Joint Research / Invited
  • [Presentation] Minimum positive entropy of complex Enriques surface automorphisms2018

    • Author(s)
      小木曽啓示
    • Organizer
      Differential, Algebraic and Topological Methods in Complex Dynamics and its development, RIMS, Kyoto
    • Invited
  • [Presentation] Smooth complex surfaces with discrete and non- finitely generated automorphism group2018

    • Author(s)
      小木曽啓示
    • Organizer
      The 24th Symposium on Complex Geometry, Kanazawa
    • Invited
  • [Presentation] Smooth complex surfaces with infinitely many real forms2018

    • Author(s)
      小木曽啓示
    • Organizer
      birational geometry and related topics, Shanhai, China
    • Int'l Joint Research / Invited
  • [Presentation] Smooth complex surfaces with discrete and non- finitely generated automorphism group and infinitely many real forms2018

    • Author(s)
      小木曽啓示
    • Organizer
      Algebraic Surfaces and Related Topics, Xiamen, China
    • Int'l Joint Research / Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      伊山修
    • Organizer
      International Congress of Mathematicians 2018 (ICM 2018), Rio Centro convention center, Rio de Janeiro, Brazil
    • Int'l Joint Research / Invited
  • [Presentation] Auslander-Reiten theory in extriangulated categories2018

    • Author(s)
      伊山修
    • Organizer
      Workshop and 18th International Conference on Representations of Algebras (ICRA 2018), Czech Technical University, Prague, Czech Republic
    • Int'l Joint Research / Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      伊山修
    • Organizer
      城崎代数幾何学シンポジウム
    • Invited
  • [Presentation] Lattice theory of torsion classes beyond τ-tilting theory2018

    • Author(s)
      伊山修
    • Organizer
      Stability Conditions and Representation Theory of Finite-Dimensional Algebras, Casa Matematica Oaxaca (CMO), Oaxaca, Mexico
    • Int'l Joint Research / Invited
  • [Presentation] Auslander algebras for Cohen-Macaulay modules2018

    • Author(s)
      伊山修
    • Organizer
      第40回可換環論シンポジウム
    • Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      伊山修
    • Organizer
      Conference on Algebraic Representation Theory, Tongji University, Shanghai, China
    • Int'l Joint Research / Invited
  • [Remarks] Shigeyuki Kondo

    • URL

      http://www.math.nagoya-u.ac.jp/~kondo/

  • [Funded Workshop] Algebraic Geometry and Moduli Theory --Conference in Honor of Shigeru Mukai’s Retirement--2019

  • [Funded Workshop] Algebraic Geometry in Positive Characteristic and Related Topics in honor of the 70th birthday of Professor Toshiyuki Katsura, Tokyo, Japan2018

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Published: 2019-12-27  

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