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Complex geometry of relative pluricanonical bundles and deformation spaces

Research Project

Project/Area Number 23340013
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionThe University of Tokyo

Principal Investigator

Takayama Shigeharu  東京大学, 数理(科)学研究科(研究院), 教授 (20284333)

Co-Investigator(Renkei-kenkyūsha) FUTAKI Akito  東京大学, 大学院数理科学研究科, 教授 (90143247)
GOTO Ryushi  大阪大学, 大学院理学研究科, 教授 (30252571)
OHSAWA Takeo  名古屋大学, 大学院多元数理科学研究科, 教授 (30115802)
OBITSU Kunio  鹿児島大学, 大学院理工学研究科, 准教授 (00325763)
YAMANOI Katsutoshi  大阪大学, 大学院理学研究科, 教授 (40335295)
FUJINO Osamu  京都大学, 大学院理学研究科, 准教授 (60324711)
HAYASHIMOTO Atsushi  国立長野高専, 一般科, 准教授 (90342493)
Project Period (FY) 2011-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords相対標準束 / モジュライ空間 / 変形空間 / 複素幾何学
Outline of Final Research Achievements

For a proper surjective morphism between complex manifolds, we obtain results to connect the deformation of complex structures of fibers and the curvature property or variations of the relative pluricanonical bundle and its direct image equipped with canonically attached Hermitian metrics. In particular, when the fibers are Calabi-Yau type, we describe completely the relations among the behavior of fiberwise Kahler-Einstein metrics, the completeness of the Weil-Petersson metric on the base, and the possible type of singularities on the central fiber.

Report

(6 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (15 results)

All 2016 2015 2014 2013 2012 2011 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 2 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 7 results)

  • [Journal Article] Singularities of Narasimhan-Simha type metrics on direct images of relative pluricanonical bundles2016

    • Author(s)
      Shigeharu Takayama
    • Journal Title

      Ann. Inst. Fourier

      Volume: 66 Issue: 2 Pages: 753-783

    • DOI

      10.5802/aif.3025

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] On moderate degenerations of polarized Ricci-flat Kaehler manifolds2015

    • Author(s)
      Shigeharu Takayama
    • Journal Title

      J. Math. Sci. Univ. Tokyo

      Volume: 22

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A local ampleness criterion of torsion free sheaves2013

    • Author(s)
      Shigeharu Takayama
    • Journal Title

      Bull. Sci. math.

      Volume: 137 Issue: 5 Pages: 659-670

    • DOI

      10.1016/j.bulsci.2013.01.001

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On volumes along subvarieties of line bundles with non-negative Kodaira-Iitaka dimension2011

    • Author(s)
      G.Pacienza, S.Takayama
    • Journal Title

      Michigan Math.J.

      Volume: 60 Issue: 1 Pages: 35-49

    • DOI

      10.1307/mmj/1301586302

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] Degeneration of algebraic varieties and the metric completeness of parameter spaces2015

    • Author(s)
      高山 茂晴
    • Organizer
      第21回複素幾何シンポジウム
    • Place of Presentation
      金沢大学サテライトプラザ
    • Year and Date
      2015-10-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On moderate degenerations of polarized Ricci-flat Kaehler manifolds2015

    • Author(s)
      高山 茂晴
    • Organizer
      Princeton-Tokyo workshop on Geometric Analysis
    • Place of Presentation
      東京大学 (東京都, 目黒区)
    • Year and Date
      2015-03-17
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Degenerations of polarized Ricci-flat Kaehler manifolds2014

    • Author(s)
      高山 茂晴
    • Organizer
      Complex analysis
    • Place of Presentation
      Oberwolfach (ドイツ)
    • Year and Date
      2014-08-27
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] On moderate degenerations of polarized Ricci-flat Kaehler manifolds2014

    • Author(s)
      高山 茂晴
    • Organizer
      多変数関数論葉山シンポジウム
    • Place of Presentation
      湘南国際村センター (神奈川県, 葉山町)
    • Year and Date
      2014-07-20
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Effective estimate on the number of deformation types of families of canonically polarized manifolds over curves2012

    • Author(s)
      高山茂晴
    • Organizer
      高次元代数多様体とベクトル束の代数幾何学
    • Place of Presentation
      九州大学(招待講演)
    • Year and Date
      2012-03-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] Effective estimate on the number of deformation types of families of canonically polarized manifolds over curves2011

    • Author(s)
      高山茂晴
    • Organizer
      Algebraic Geometry in East Asia
    • Place of Presentation
      台湾、台北市(招待講演)
    • Year and Date
      2011-11-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Metric positivity of higher direct images of twisted sheaves of differential forms2011

    • Author(s)
      高山茂晴
    • Organizer
      RIMS共同研究「ポテンシャル論とファイバー空間」
    • Place of Presentation
      京都大学(招待講演)
    • Year and Date
      2011-09-07
    • Related Report
      2011 Annual Research Report
  • [Presentation] On higher direct images of twisted sheaves of differential forms2011

    • Author(s)
      高山茂晴
    • Organizer
      The 6th Pacific RIM conference on complex geometry
    • Place of Presentation
      韓国、慶州市(招待講演)
    • Year and Date
      2011-08-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] An effective birationality of pluricanonical maps for a family of canonically polarized manifolds over a curve

    • Author(s)
      高山 茂晴
    • Organizer
      Complex Geometry Conference in honor of Professor Y.-T. Siu's 70th
    • Place of Presentation
      KIAS, ソウル, 韓国
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] An effective birationality of pluricanonical maps for a family of canonically polarized manifolds over a curve

    • Author(s)
      高山 茂晴
    • Organizer
      代数幾何学城崎シンポジウム
    • Place of Presentation
      城崎大会議館
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On complex geometry of pluricanonical and adjoint bundles

    • Author(s)
      高山 茂晴
    • Organizer
      第8回代数・解析・幾何セミナー
    • Place of Presentation
      鹿児島大学
    • Related Report
      2012 Annual Research Report
    • Invited

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Published: 2011-04-06   Modified: 2019-07-29  

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