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Birational geometry for higher-dimensional algebraic varieties

Research Project

Project/Area Number 24684002
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Algebra
Research InstitutionOsaka University (2016)
Kyoto University (2012-2015)

Principal Investigator

Fujino Osamu  大阪大学, 理学(系)研究科(研究院), 教授 (60324711)

Project Period (FY) 2012-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords極小モデル理論 / 混合ホッジ構造 / 半対数的j標準対 / 消滅定理 / 半正値性定理 / 擬対数的スキーム / 乗数イデアル層 / 藤田予想 / 半対数的標準対 / 安定多様体 / 飯高不等式 / 数値的小平次元 / アバンダンス予想 / 対数的小平次元 / アフィン多様体 / モジュライ理論 / 混合ホッジ理論 / 射影性 / 高次元代数多様体 / 極小モデル / モジュライ空間 / 半正値性
Outline of Final Research Achievements

I am mainly interested in higher-dimensional complex projective varieties. I established several powerful generalizations of the Kodaira vanishing theorem by using the theory of mixed Hodge structures on cohomology with compact support. As applications, I proved the fundamental theorems of the minimal model theory for semi-log canonical pairs and quasi-log schemes. Moreover, by considering variations of mixed Hodge structures on cohomology with compact support, I obtained a generalization of the Fujita―Zucker―Kawamata semipositivity theorem. As an application, I proved the projectivity of the moduli spaces of stable varieties

Report

(6 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (44 results)

All 2016 2015 2014 2013 2012 Other

All Journal Article (23 results) (of which Peer Reviewed: 23 results,  Acknowledgement Compliant: 9 results,  Open Access: 3 results) Presentation (21 results) (of which Int'l Joint Research: 8 results,  Invited: 19 results)

  • [Journal Article] Kollar-type effective freeness for quasi-log canonical pairs2016

    • Author(s)
      Osamu Fujino
    • Journal Title

      Internat. J. Math.

      Volume: 27 Issue: 14 Pages: 1650114-1650114

    • DOI

      10.1142/s0129167x16501147

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Vanishing theorems2016

    • Author(s)
      Osamu Fujino
    • Journal Title

      Adv. Stud. Pure. Math. Sci.

      Volume: 50 Pages: 299-321

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Direct images of relative pluricanonical bundles2016

    • Author(s)
      O. Fujino
    • Journal Title

      Algebraic Geometry

      Volume: 3 Issue: 1 Pages: 50-62

    • DOI

      10.14231/ag-2016-003

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Basepoint-free theorem of Reid--Fukuda type for quasi-log schemes2016

    • Author(s)
      O. Fujino
    • Journal Title

      Publ. Res. Inst. Math. Sci.

      Volume: 52 Issue: 1 Pages: 63-81

    • DOI

      10.4171/prims/174

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On log canonical rational singularities2016

    • Author(s)
      O. Fujino
    • Journal Title

      Proc. Japan Acad. Ser. A Math. Sci.

      Volume: 92 Issue: 1

    • DOI

      10.3792/pjaa.92.13

    • NAID

      40020720229

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Some remarks on the minimal model program for log canonical pairs2015

    • Author(s)
      Osamu Fujino
    • Journal Title

      J. Math. Sci. Univ. Tokyo

      Volume: 22

    • NAID

      120006906129

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Kodaira vanishing theorem for log-canonical and semi-log-canonical pairs2015

    • Author(s)
      Osamu Fujino
    • Journal Title

      Proc. Japan Acad. Ser. A Math. Sci.

      Volume: 91 Issue: 8

    • DOI

      10.3792/pjaa.91.112

    • NAID

      40020643129

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Variations of mixed Hodge structure and semipositivity theorems2014

    • Author(s)
      Osamu Fujino, Taro Fujisawa
    • Journal Title

      Publ. Res. Inst. Math. Sci.

      Volume: 50 Issue: 4 Pages: 589-661

    • DOI

      10.4171/prims/145

    • NAID

      110009864211

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Fundamental theorems for semi log canonical pairs2014

    • Author(s)
      Osamu Fujino
    • Journal Title

      Algebr. Geom.

      Volume: 1 Pages: 194-228

    • DOI

      10.14231/ag-2014-011

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Log pluricanonical representations and the abundance conjecture2014

    • Author(s)
      Osamu Fujino, Yoshinori Gongyo
    • Journal Title

      Compos. Math.

      Volume: 150 Issue: 4 Pages: 593-620

    • DOI

      10.1112/s0010437x13007495

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Some Remarks on the Semipositivity Theorems2014

    • Author(s)
      Osamu Fujino, Taro Fujisawa, Morihiko Saito
    • Journal Title

      Publications of the Research Institute for Mathmatical Sciences

      Volume: 50 Issue: 1 Pages: 85-112

    • DOI

      10.4171/prims/125

    • NAID

      110009751446

    • Related Report
      2014 Annual Research Report 2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On images of weak Fano manifolds II2014

    • Author(s)
      Osamu Fujino, Yoshinori Gongyo
    • Journal Title

      Algebraic and Complex Geometry

      Volume: PROMS 71 Pages: 201-207

    • DOI

      10.1007/978-3-319-05404-9_7

    • ISBN
      9783319054032, 9783319054049
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] On the moduli b-divisors of lc-trivial fibrations2014

    • Author(s)
      Osamu Fujino, Yoshinori Gongyo
    • Journal Title

      Ann. Inst. Fourier (Grenoble)

      Volume: 64 Issue: 4 Pages: 1721-1735

    • DOI

      10.5802/aif.2894

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] On the ACC for lengths of extremal rays2013

    • Author(s)
      Osamu Fujino, Yasuhiro Ishitsuka
    • Journal Title

      Tohoku Math. J.

      Volume: 65

    • NAID

      130005147686

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the F-purity of isolated log canonical singularities2013

    • Author(s)
      O. Fujino, S. Takagi
    • Journal Title

      Compositio Mathematica

      Volume: 149 Issue: 9 Pages: 1495-1510

    • DOI

      10.1112/s0010437x1300715x

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On maximal Albanese dimensional varieties2013

    • Author(s)
      Osamu Fujino
    • Journal Title

      Proc. Japan Acad. Ser. A Math. Sci

      Volume: 89 Issue: 8

    • DOI

      10.3792/pjaa.89.92

    • NAID

      40019907070

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A transcendental approach to Kollar's injectivity theorem II2013

    • Author(s)
      O. Fujino
    • Journal Title

      Journal fur die reine und angewandte Mathematik

      Volume: 681 Issue: 681

    • DOI

      10.1515/crelle-2012-0036

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On images of weak Fano manifolds2012

    • Author(s)
      Osamu Fujino, Yoshinori Gongyo
    • Journal Title

      Math. Z.

      Volume: 270 Issue: 1-2 Pages: 531-544

    • DOI

      10.1007/s00209-010-0810-6

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minimal model theory for log surfaces2012

    • Author(s)
      Osamu Fujino
    • Journal Title

      Publ. Res. Inst. Math. Sci.

      Volume: 48 Issue: 2 Pages: 339-371

    • DOI

      10.2977/prims/71

    • NAID

      110009424718

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Basepoint-free theorems : saturation, b-divisors, and canoncal bundle formula2012

    • Author(s)
      Osarau Fujino
    • Journal Title

      Algebra Number Theory

      Volume: 6 Issue: 4 Pages: 797-823

    • DOI

      10.2140/ant.2012.6.797

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A transcendental approach to kollar's injectivity theorem2012

    • Author(s)
      Osamu Fujino
    • Journal Title

      Osaka J. Math.

      Volume: 49 Pages: 833-852

    • NAID

      120004898478

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On log surfaces2012

    • Author(s)
      Osamu Fujino, Hiromu Tanaka
    • Journal Title

      Proc. Japan Acad. Ser. A Math. Sci.

      Volume: 88 Issue: 8 Pages: 109-114

    • DOI

      10.3792/pjaa.88.109

    • NAID

      40019463883

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A renark on Kovacs' s vanishing theorem2012

    • Author(s)
      Osanu Fujino
    • Journal Title

      Kyoto J. Math.

      Volume: 52 Issue: 4 Pages: 829-832

    • DOI

      10.1215/21562261-1728884

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Vanishing theorems for complex projective varieties2016

    • Author(s)
      Osamu Fujino
    • Organizer
      The Asian Mathematical Conference 2016
    • Place of Presentation
      Bali Nusa Dua Convention Center, Bali Indonesia
    • Year and Date
      2016-07-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 極小モデル理論の最近の発展について2016

    • Author(s)
      藤野修
    • Organizer
      数学教室談話会
    • Place of Presentation
      大阪大学大学院理学研究科
    • Year and Date
      2016-07-11
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Injectivity theorem for pseudo-effective line bundles and its applications2016

    • Author(s)
      Osamu Fujino
    • Organizer
      Pacific RIM Conference on Mathematics 2016
    • Place of Presentation
      Seoul National University, Korea
    • Year and Date
      2016-06-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct images of relative pluricanonical bundles2016

    • Author(s)
      藤野修
    • Organizer
      代数幾何・複素幾何セミナー
    • Place of Presentation
      大阪大学大学院理学研究科
    • Year and Date
      2016-04-20
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] On injectivity and vanishing theorems2016

    • Author(s)
      Osamu Fujino
    • Organizer
      Workshop on $L^2$ Extension theorems
    • Place of Presentation
      Graduate School of Mathematical Sciences, the University of Tokyo
    • Year and Date
      2016-02-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct images of relative pluricanonical bundles2016

    • Author(s)
      Osamu Fujino
    • Organizer
      Higher dimensional algebraic geometry and around, Kobe--Kyoto, 2016
    • Place of Presentation
      Graduate School of Science, Kobe University
    • Year and Date
      2016-02-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 極小モデル理論の最近の発展について2015

    • Author(s)
      藤野 修
    • Organizer
      金沢大学数理学談話会
    • Place of Presentation
      金沢大学理工学域
    • Year and Date
      2015-12-09
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Direct images of relative pluricanonical bundles2015

    • Author(s)
      藤野 修
    • Organizer
      第3回杜の都代数幾何学研究集会@福岡
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2015-11-25
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 消滅定理と半正値性定理2015

    • Author(s)
      Osamu Fujino
    • Organizer
      第21回複素幾何シンポジウム(金沢)
    • Place of Presentation
      金沢大学サテライトプラザ3階集会室
    • Year and Date
      2015-10-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the foundations of the minimal model program2015

    • Author(s)
      Osamu Fujino
    • Organizer
      代数幾何学城崎シンポジウム
    • Place of Presentation
      城崎国際アートセンター
    • Year and Date
      2015-10-23
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On semi-log canonical pairs2015

    • Author(s)
      Osamu Fujino
    • Organizer
      Algebraic Geometry 2015
    • Place of Presentation
      University of Utah, USA
    • Year and Date
      2015-07-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct images of pluricanonical divisors2015

    • Author(s)
      Osamu Fujino
    • Organizer
      2015 KAISR CMC Advances School of Algebraic Geometry
    • Place of Presentation
      Department of Mathematical Sciences, KAIST, Korea
    • Year and Date
      2015-04-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct images of pluricanonical divisors2014

    • Author(s)
      Osamu Fujino
    • Organizer
      Conference on Hodge Theory and L^2-cohomology
    • Place of Presentation
      Johns Hopkins University, USA
    • Year and Date
      2014-11-23
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Subadditivity of the logarithmic Kodaira dimension for affine varieties2014

    • Author(s)
      Osamu Fujino
    • Organizer
      Algebraic Varieties and Automorphism Groups
    • Place of Presentation
      RIMS Kyoto University, Japan
    • Year and Date
      2014-07-07
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Variations of mixed Hodge structure and semipositivity theorems2014

    • Author(s)
      Osamu Fujino
    • Organizer
      Conference on Positivity, Vanishing Theorems, and Applications
    • Place of Presentation
      University of Lille 1, France
    • Year and Date
      2014-05-15
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Fundamental theorems for semi log canonical pairs2013

    • Author(s)
      Osamu Fujino
    • Organizer
      Higher dimensional algebraic geometry conference
    • Place of Presentation
      東京大学
    • Year and Date
      2013-01-09
    • Related Report
      2012 Annual Research Report
  • [Presentation] Birational geometry and Hodge theory2012

    • Author(s)
      Osamu Fujino
    • Organizer
      London Mathematical Society-EPSRC Durham Symposium Interactions of Birational Geometry with other fields
    • Place of Presentation
      イギリス、Durham大学
    • Year and Date
      2012-07-05
    • Related Report
      2012 Annual Research Report
  • [Presentation] Some applications of the semi-positivity theorems

    • Author(s)
      Osamu Fujino
    • Organizer
      Birational geometry of complex algebraic varieties
    • Place of Presentation
      CIRM(フランス)
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] On log canonical rings

    • Author(s)
      藤野 修
    • Organizer
      ホッジ理論と代数幾何学
    • Place of Presentation
      東京電機大学
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] ファノ多様体についてのいくつかの問題

    • Author(s)
      藤野 修
    • Organizer
      Fano多様体の最近の進展
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Kov\'ac'sの消滅定理とその応用

    • Author(s)
      藤野 修
    • Organizer
      第2回杜の都代数幾何学研究集会---トーリック多様体と特異点の周辺
    • Place of Presentation
      東北大学
    • Related Report
      2013 Annual Research Report
    • Invited

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Published: 2012-04-24   Modified: 2019-07-29  

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