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Study of singularities and geometry by means of representation theory

Research Project

Project/Area Number 08404001
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

NAKAMURA Iku  Grad. School of Sci., Hokkaido univ., Prof., 大学院・理学研究科, 教授 (50022687)

Co-Investigator(Kenkyū-buntansha) OKA Mutsuo  Faculty of Sci., Tokyo Metro. Univ., Prof., 理学部, 教授 (40011697)
ISHIKAWA Goo  Grad. School of Sci., Hokkaido univ., Assoc. Prof., 大学院・理学研究科, 助教授 (50176161)
SUWA Tatsuo  Grad. School of Sci., Hokkaido univ., Prof., 大学院・理学研究科, 教授 (40109418)
KATSURA Toshiyuki  Facult of Sci., Univ. of Tokyo, Prof., 大学院・数理科学研究科, 教授 (40108444)
EGUCHI Tohru  Facult of Sci., Univ. of Tokyo, Prof., 理学部, 教授 (20151970)
筱田 健一 (篠田 健一)  上智大学理工学部, 教授 (20053712)
吉田 知行  北海道大学, 大学院理学研究科, 教授 (30002265)
泉屋 周一  北海道大学, 大学院理学研究科, 教授 (80127422)
石田 正典  東北大学, 大学院・理学研究科・数学, 教授 (30124548)
藤木 明  大阪大学, 大学院・理学研究科・数学, 教授 (80027383)
島田 伊知朗  北海道大学, 大学院・理学研究科, 助教授 (10235616)
山下 博  北海道大学, 大学院・理学研究科, 助教授 (30192793)
Project Period (FY) 1996 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥16,300,000 (Direct Cost: ¥16,300,000)
Fiscal Year 1999: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1998: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 1997: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 1996: ¥4,100,000 (Direct Cost: ¥4,100,000)
KeywordsRepresentation / Singularity / Simple singularity / McKay correspondence / Abelian variety / moduli / Stability / McKay対応 / マッカイ対応 / 商特異点 / ヒルベルト スキーム / スタビリィティ(安定性) / ヒルベルトスキーム / マッケイ対応 / トーリック多様体 / ツイスター空間 / ハイパーケーラー多様体 / モノドロミ- / 横断性定理
Research Abstract

We studied two-dimensional McKay correspondence and a canonical compactification of the moduli of abelian varieties.
(I) For any finite subgroup of SL(2) we can construct a minimal resolution of a simple surface singularity CィイD12ィエD1/G as the Hilbert scheme of G-orbits. Via this construction we are able to provide a new explanation of two-dimensional McKay correspondence.
(ii) We proved that for any finite abelian subgroup G of SL(3) the Hilbert scheme of G-orbits is a crepant resolution of the singularity CィイD13ィエD1/G. For simple finite subgroup G of SL(3) (there are only two such) we determined the structure of the Hilbert scheme of G-orbits.
(iii) We constructed a canonical compactification SQィイD1g,NィエD1 of the moduli of abelian varieties over Z[ζィイD2NィエD2, 1/N]. Any point of SQィイD2g,NィエD2 is represented by an isomorphism class of a possibly singular abelian variety with certain level structure.

Report

(5 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] I.Nakamura: "Global deformations of IP^2-bundles over IP^1"Jour.Math.Kyoto Univ.. 38. 29-54 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I.Nakamura: "Hilbert schemes and simple sigularities"London Mathematical Soc.Lecture Note Series. 264. 151-233 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I.Nakamura: "On Mumford 5 construction of degenerating abelian varieties"Tohoku Jour.Math.. 51. 399-420 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I.Nakamura: "Stability of degenerate abelian varieties"Invent.Math.. 136. 659-715 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I.Nakamura: "Compactification of the modili of abelian varieties over II[ζ_N,1/N]"C.R.Acad.Sci.Paris. 327. 875-880 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I.Nakamura: "Hilbert schemes of abelian group orbits"Jour.Alg.Geom.. (印刷中). 1-21 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "Global deformations of PィイD12ィエD1-bundles over PィイD11ィエD1"Jour. Math. Kyoto Univ.. 38. 29-54 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "Compactification of the moduli of abelian varieties over Z[ζィイD2NィエD2, 1/N]"C. R. Acad. Sci. Paris. 327. 875-880 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "Hilbert schemes and simple singularities"New trends in algebraic geometry. London Mathematcal Society Lecture Note Series 264 Cambridge university press. 151-233 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "On Mumford's construction of de9enerating abelian varieties"Tohoku Jour. Math. 51. 399-420 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "Stability of degenerate abelian varieties"Invent Math. 136. 659-715 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "Hilbert schemes of abelian group orbits"to appear in Jour. Alg. Geom.. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] I. Nakamura: "Global deformations of IP^2-bundles over IP^1"Jour. Math. Kyoto Univ. 38. 29-54 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Ito: "Hilbert schemes and simple singularities"London Mathematical Soc. Lecture Note Series. 264. 151-233 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] V. Alexeev: "On Mumford's construction of degenerating abelian varieties"Tohoku Jour. Math. 51. 399-420 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] I. Nakamura: "Stability of degenerate abelian varieties"Invent Math. 136. 659-715 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] I. Nakamura: "Compactification of the moduli of abelian varieties OverII[ζ_N,1/N]"C, R, Acad Sci Paris. 327. 875-880 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] I. Nakamura: "Hilbert schemes of abelian group orbits"Jour. Alg. Geom.. 印刷中. 1-21 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] I.Nakamura: "Moishezon threefolds homeomorphic to a cubic hypersurface in P^4" Jour.Alg.Geometry. 5. 537-569 (1996)

    • Related Report
      1998 Annual Research Report
  • [Publications] I.Nakamura: "Global deformations of P^2 bundles over P^1" Jour.Math.Kyoto University. 38. 29-54 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Ito: "Hilbert schemes and simple singularities" New trends in algebraic geometry,Cambridge Univ Press. 151-233 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] V.Alexeev: "On Mumford's construction of degenerating abelian varieties" Tohoku Jour.Math.(in Press).

    • Related Report
      1998 Annual Research Report
  • [Publications] I.Nakamura: "Stability of degenerate abelian varieties" Invent.Math.(in Press).

    • Related Report
      1998 Annual Research Report
  • [Publications] I.Nakamura: "Compactification of the moduli of abelian varieties over Z[ζ_<N1>υ_<N1>]" Comptes Rerdus Acad.Sci.Paris.327. 875-880 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] I.Nakamura: "Moishezon threefolds nomeomorphic to a cubic hypersurface in P_4" Journal of Algebraic Geometry. 5. 537-569 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Ito: "Mokay correspondence and Hilbert schemes" Proc.Japan Acad.72. 135-138 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] J.Seade: "A residue formula for the index of a holomorphic flow" Math.Ann.304. 621-634 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Go-o Ishikawa: "Symplectic and Lagrange stabilities of open Whitney umbrellas" Invent Math.126. 215-234 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Fujiki: "Nagata threefold and twistor space" Proc.Meeting on Omartenionic Structures. 161-170 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] I. Nakamura: "Moishezon threefolds homeomorphic to a cubic hypersurface in P^4" Jour. Alg. Geom. 5. 537-569 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y. Ito: "Mckay correspondence and Hibert schemes" Proc. Japan Acad.72. 537-569 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] G. Ishikawa: "Transversalities for Langlange singularities" Singularities and Differential Equations. 33. 93-104 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H. Yamashita: "The embedding of discrete series into principal series for exceptional real simple Lie group of type G_2" Jour. Math. Kyoto Univ.36. 557-595 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] I. Shimada: "A note on Zariski pairs" Compositio. Math. (in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] S. Izumiya: "Geometric singularities for solutions of single conseruation law" Archive for Rational mechanics & Analysis. (in press). (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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