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Non-projective compactifications of three dimensional affine space

Research Project

Project/Area Number 19540041
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionKumamoto University

Principal Investigator

FURUSHIMA Mikio  Kumamoto University, 大学院・自然科学研究科, 教授 (00165482)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsアフィン空間 / 非射影的コンパクト化 / コンパクト化 / 非射影的 / モイシェゾン
Research Abstract

第2ベッチ数1をもつ3次元複素アフィン空間の非射影的コンパクト化(X, Y)については, 境界因子Yがnefの場合は, 指数2以下の高々ゴレンスタイン端末特異点を持つ3次元ファノ多様体によるコンパクト化の分類に帰着されることが分かる.
特に, 指数2の場合は(X, Y)の構造は解明されているが, 指数1の場合は, 具体的な例(モデル)は在する者の, 最終的な構造の決定までは至ることが出来なかった.
しかし, 境界因子を詳細に解析する事により, 境界の位相的・代数的構造と全体空間の位相的・代数的構造との関連について結果を得た.
Yがnon-nefの場合は, 古島によって構成された無限個の例について, 解析的な不変量を定義し, 具体的にその不変量を求めた.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (8 results)

All 2008 2007

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results)

  • [Journal Article] Analytic compactifications of C^2/D2007

    • Author(s)
      古島幹雄、大嶋康裕, 島唯史
    • Journal Title

      Abh. Math. Uni. Hamburg Vol.77

      Pages: 155-168

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Non-projective compactifications of C3(IV)2007

    • Author(s)
      古島幹雄
    • Journal Title

      Kyushu J. Math Vol.66

      Pages: 259-273

    • NAID

      130000063193

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Non-Projective Compactifications of C^3 (IV)2007

    • Author(s)
      古島 幹雄
    • Journal Title

      Kyusyu J. Math. 61巻

      Pages: 259-273

    • NAID

      130000063193

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analytic Compactifictions of C^2/D2007

    • Author(s)
      古島 幹雄
    • Journal Title

      Abh. Math. Sem. Univ Hamburg

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Non-projective compactification of C^32008

    • Author(s)
      古島幹雄
    • Organizer
      Koloquim in Hamburg
    • Place of Presentation
      Hamburg University
    • Year and Date
      2008-05-06
    • Related Report
      2008 Final Research Report
  • [Presentation] Twards the classification of non-projective compactifications of C^32008

    • Author(s)
      古島幹雄
    • Organizer
      Oberseminar in Max-Planck-Institute for Mathematik
    • Place of Presentation
      Bonn(Germany)
    • Year and Date
      2008-04-30
    • Related Report
      2008 Final Research Report
  • [Presentation] Toward the classification of non-projective compactifications of C^32008

    • Author(s)
      M. Furushima
    • Organizer
      Oberseminar MPIM
    • Place of Presentation
      Max-Planck-Institute fuer Mathematik in Bonn
    • Year and Date
      2008-04-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] Non-projective compactifications of C^32007

    • Author(s)
      古島 幹雄
    • Organizer
      平成19年度多変数関数論冬セミナー
    • Place of Presentation
      富山大学
    • Year and Date
      2007-12-24
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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