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2014 Fiscal Year Research-status Report

高次コホモロジー群の漸近的不変量とその複素幾何学への応用

Research Project

Project/Area Number 25800051
Research InstitutionKagoshima University

Principal Investigator

松村 慎一  鹿児島大学, 理工学研究科, 助教 (90647041)

Project Period (FY) 2013-04-01 – 2017-03-31
Keywords複素幾何学 / コホモロジー / 随伴束 / 特異計量 / 乗数イデアル層 / 単射性定理 / 調和積分論 / L2-理論
Outline of Annual Research Achievements

本研究の目的は, 代数幾何の設定で自然に現れる概念(コホモロジー, 豊富性など)を, 複素幾何の立場(曲率, 正値性など)から扱う枠組みの構築であった.
今年度は随伴束に対するコホモロジーの消滅定理の一般化である単射性定理を主に研究した. 結果として, 単射性定理の特異計量と乗数イデアル層を用いた一般化を与えることができた.
従来の単射性定理の複素幾何的な証明には調和積分論が用いられるが, 非代数的な特異性を持つ特異計量を扱うために, 調和積分論とd-bar方程式, L2-理論を組み合わせる点が証明の鍵になる.

Current Status of Research Progress
Current Status of Research Progress

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

Reason

去年度に得られた単射性定理の自然な一般化を得ることができた. その証明の過程で計量の族に関する調和形式を調べる技術を得られた.

Strategy for Future Research Activity

今年度の証明の過程で得られた技術の深化を目指したい. 具体的には, 以前から考えていた対数的標準特異点(log canonical singularities)を許した多様体への一般化を与えたい. また, 多様体の変形族の高次順像への一般化も模索したい.

  • Research Products

    (8 results)

All 2015 2014

All Presentation (8 results) (of which Invited: 8 results)

  • [Presentation] Versions of injectivity and extension theorem2015

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      Princeton-Tokyo workshop on Geometric Analysis
    • Place of Presentation
      東京大学, 目黒区, 東京都
    • Year and Date
      2015-03-17
    • Invited
  • [Presentation] Versions of injectivity theorems2015

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      Analytical aspects of the d-bar equation
    • Place of Presentation
      名古屋大学, 名古屋市, 愛知県
    • Year and Date
      2015-02-14
    • Invited
  • [Presentation] Versions of injectivity theorems and extension theorems2015

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      Seminaire d'Analyse et Geometrie
    • Place of Presentation
      Institut de Mathematiques de Jussieu-Paris in France
    • Year and Date
      2015-02-03
    • Invited
  • [Presentation] Versions of injectivity theorems and extension theorems2014

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      Symposium on Complex Geometry
    • Place of Presentation
      National Research University Higher School of Economics at Moscow in Russia
    • Year and Date
      2014-11-12
    • Invited
  • [Presentation] An injectivity theorem with multiplier ideal sheaves of singular metrics with transcendental singularities2014

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      第57回函数論シンポジウム
    • Place of Presentation
      東北大学, 仙台市, 宮城県
    • Year and Date
      2014-11-08
    • Invited
  • [Presentation] The theory of harmonic integrals and its applications2014

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      日本数学会九州支部会特別講演
    • Place of Presentation
      鹿児島大学, 鹿児島市, 鹿児島県
    • Year and Date
      2014-10-09
    • Invited
  • [Presentation] An injectivity theorem with multiplier ideal sheaves and its applications2014

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      The KSCV Symposium #10: International conference on ComplexAnalysis and Geometry, Satellite Conferences of ICM
    • Place of Presentation
      Kolon Hotel at Gyeong-Ju in Korea
    • Year and Date
      2014-08-08
    • Invited
  • [Presentation] An injectivity theorem with multiplier ideal sheaves and its applications2014

    • Author(s)
      Shin-ichi Matsumura
    • Organizer
      Workshop Complex Geometry and Lie Groups
    • Place of Presentation
      Aula Magna Rettorato Universita at Torino in Italy
    • Year and Date
      2014-06-19
    • Invited

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Published: 2016-06-01  

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