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2018 Fiscal Year Research-status Report

Existence of higher dimensional crepant resolutions and generlization of the McKay correspondence

Research Project

Project/Area Number 18K03209
Research InstitutionNagoya University

Principal Investigator

伊藤 由佳理  名古屋大学, 多元数理科学研究科, 准教授 (70285089)

Co-Investigator(Kenkyū-buntansha) 石井 亮  名古屋大学, 多元数理科学研究科, 教授 (10252420)
伊山 修  名古屋大学, 多元数理科学研究科, 教授 (70347532)
Project Period (FY) 2018-04-01 – 2023-03-31
Keywords特異点 / 特異点解消 / マッカイ対応
Outline of Annual Research Achievements

2018年度は高次元のクレパントな特異点解消についての研究をメインで行った。大学院生の佐藤悠介氏が4次元で基底を用いて構成できる例を複数見つけ、そのマッカイ対応について考察した。
また11月16日、17日の二日間、名古屋大学大学院多元数理科学研究科にて、Workshop on McKay Correspondence and Noncommutative Algebraという国際研究集会を開催した。
この集会に海外の専門家3名(Alastair Craw (Bath, UK), Alvaro Nolla de Celis (UAM, Spain), Will Donovan (Tsinghua, China ))と国内の若手研究者8名(Yusuke Nakajima (Kavli IPMU)、Aaron Chan (Nagoya)、Ryo Yamagishi (Kyoto)、Sota Asai (Nagoya)、Wahei Hara (Waseda)、Ayako Kubota (Waseda)、Yusuke Sato (Nagoya)、Yasuaki Gyoda (Nagoya))を集め、最近のマッカイ対応や非可換代数に関する情報交換を行うことができた。なお、この集会についての詳しい情報はhttps://sites.google.com/view/mckayworkshopにある。
さらに、研究代表者は兼任先の東京大学国際高等研究所カブリ数物連携宇宙研究機構のセミナーにも多々出席し、代数幾何学や関連する物理の研究者とも交流した。

Current Status of Research Progress
Current Status of Research Progress

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

Reason

2018年度は、研究の準備期間にあたる一年であり、その中で研究集会を開催して最新の結果を情報収集できたことはほぼ計画通りであるので、おおむね順調に進展しているといえる。

Strategy for Future Research Activity

2019年度より研究代表者は東京大学国際高等研究所カブリ数物連携宇宙研究機構(IPMU)に異動し、他2名の研究協力者は名古屋大学にいるので物理的には離れてしまう。しかし、ときどきIPMUにてセミナーを開催し情報交換する予定である。
また、IPMUに大学院生の佐藤悠介氏、ポスドクの中嶋祐介氏と山岸亮氏がいるので、セミナーを開いたり、日本大学文理学部で月1回開催されている特異点セミナーに出席して、研究成果の発表や、情報交換を行いたい。
さらに2020年度にはIPMUでマッカイ対応関連の国際研究集会を開催したいので、2019年度にはその準備として、国内外の文献をよく調べて、講演者の選定なども行いたい。

Causes of Carryover

研究集会を開催した際の参加者の旅費を本研究費で賄う予定であったが、他の集会にも参加した講演者たちの旅費が他大学から支払われたため、本研究費から支出しなかった。しかし、今回は規模も小さかったので2020年に開催する集会で海外からの参加者の旅費に充てる予定である。

  • Research Products

    (30 results)

All 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 1 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 10 results) Remarks (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Bath/University of Glasgow/University of East Anglia(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      University of Bath/University of Glasgow/University of East Anglia
  • [Int'l Joint Research] UAM(スペイン)

    • Country Name
      SPAIN
    • Counterpart Institution
      UAM
  • [Int'l Joint Research] Tsinghua University(中国)

    • Country Name
      CHINA
    • Counterpart Institution
      Tsinghua University
  • [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] Universitaet Bonn/Universitaet Stuttgart(ドイツ)

    • Country Name
      GERMANY
    • Counterpart Institution
      Universitaet Bonn/Universitaet Stuttgart
  • [Int'l Joint Research]

    • # of Other Countries
      2
  • [Journal Article] Auslander?Gorenstein algebras from Serre-formal algebras via replication2019

    • Author(s)
      Chan Aaron、Iyama Osamu、Marczinzik Ren
    • Journal Title

      Advances in Mathematics

      Volume: 345 Pages: 222~262

    • DOI

      https://doi.org/10.1016/j.aim.2019.01.010

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] tau-Tilting Finite Algebras, Bricks, and g-Vectors2019

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

      International Mathematics Research Notices

      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 Algebra2019

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

      Pacific Journal of Mathematics

      Volume: 298 Pages: 399~416

    • DOI

      10.2140/pjm.2019.298.399

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quotients of triangulated categories and Equivaleces of Buchweitz, Orlov and Amiot-Guo-Keller2019

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

      Amer. J. Math.

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tilting Cohen-Mcauley representations2019

    • Author(s)
      Osamu Iyama
    • Journal Title

      Proceedings of the International Congress of Mathematics (ICM 2018)

      Volume: 印刷中 Pages: 印刷中

  • [Journal Article] Extended McKay correspondence for quotient surface singularities2018

    • Author(s)
      Ishii Akira、Nakamura Iku
    • Journal Title

      The Quarterly Journal of Mathematics

      Volume: 00 Pages: 00

    • DOI

      https://doi.org/10.1093/qmath/hay047

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

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

      Journal of Noncommutative Geometry

      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)
      Iyama Osamu、Reading Nathan、Reiten Idun、Thomas Hugh
    • Journal Title

      Compositio Mathematica

      Volume: 154 Pages: 1269~1305

    • DOI

      https://doi.org/10.1112/S0010437X18007078

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

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

      Transactions of the American Mathematical Society

      Volume: 370 Pages: 7861~7898

    • DOI

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

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Noncommutative resolutions using syzygies2018

    • Author(s)
      Dao Hailong、Iyama Osamu、Iyengar Srikanth B.、Takahashi Ryo、Wemyss Michael、Yoshino Yuji
    • Journal Title

      Bulletin of the London Mathematical Society

      Volume: 51 Pages: 43~48

    • DOI

      https://doi.org/10.1112/blms.12210

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2019

    • Author(s)
      Osamu Iyama
    • Organizer
      Interactions between commutative algebra, representation theory and algebraic geometry
    • Int'l Joint Research / Invited
  • [Presentation] 特異点とマッカイ対応2018

    • Author(s)
      Yukari Ito
    • Organizer
      名古屋大学多元数理談話会
    • Invited
  • [Presentation] Dimer models with group actions2018

    • Author(s)
      Akira Ishii
    • Organizer
      Differential, Algebraic and Topological Methods in Complex Algebraic Geometry
    • Int'l Joint Research / Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Higher homological algebra and cluster tilting
    • Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2018

    • Author(s)
      Osamu Iyama
    • Organizer
      日本大学 特異点セミナー
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      International Congress of Mathematicians 2018
    • Int'l Joint Research / Invited
  • [Presentation] Auslander-Reiten theory in extriangulated categories2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Workshop and 18th International Conference on Representation of algeblas
    • Int'l Joint Research / Invited
  • [Presentation] Tilting Cohen-Macaulay representations2018

    • Author(s)
      Osamu Iyama
    • Organizer
      城崎代数幾何学シンポジウム
    • Invited
  • [Presentation] Lattice theory of torsion classes beyond tau-tuktung theory2018

    • Author(s)
      Osamu Iyama
    • Organizer
      Stability Conditions and Representaion Theory of Finite-Dimesional Algebra
    • Int'l Joint Research / Invited
  • [Presentation] Tilting theory for Gorenstein rings in dimension one2018

    • Author(s)
      Osamu Iyama
    • Organizer
      代数幾何学セミナー
    • Invited
  • [Presentation] Auslander algebras for Cohen-Macaulay modules2018

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

    • Author(s)
      Osamu Iyama
    • Organizer
      Conference on Algebaic Representaion Theory
    • Int'l Joint Research / Invited
  • [Remarks] McKay Correspondence and Noncommutative Algebra

    • URL

      https://sites.google.com/view/mckayworkshop

  • [Funded Workshop] Workshop on McKay Correspondence and Noncommutative Algebra2018

URL: 

Published: 2019-12-27  

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