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New developments of higher dimensional value distribution theory and the fundamentals of complex analysis in several variables

Research Project

Project/Area Number 19K03511
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 12010:Basic analysis-related
Research InstitutionThe University of Tokyo

Principal Investigator

Noguchi Junjiro  東京大学, 大学院数理科学研究科, 名誉教授 (20033920)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords解析学 / 高次元値分布理論 / Nevanlinna理論 / 多変数関数論 / 岡理論 / 数論的複素幾何 / 超越数論
Outline of Research at the Start

値分布理論と代数多様体の有理点分布はアナロジーの観点からの研究が主流であったが、最近本代表者により証明レベルでの深い関係があることが見出された。これは、二つの理論の間の新しい局面を開くもので、この研究をさらに深める。
多変数複素解析の基礎は、岡潔、H. カルタン、L.ヘルマンダー等により構築されてきた。これを連接性にまで戻り、コホモロジーやL2-dbar法に依拠しない「弱連接定理」による新しい方法で岡理論基礎を簡易化する新展開を目指す。同時に、岡潔が連接性を発見する動機をなした分岐被覆領域に対する擬凸問題の新展開を目指す。

Outline of Final Research Achievements

(1) Based on the results of the previous project ``15K04917'', I proceeded with research from the viewpoint of higher dimensional value distribution theory-Diophantine geometry-the o-minimal theory. In collaboration with P. Corvaja (Italy) and U. Zannier (ibid.), I studied the the removability of singularities of holomorphic sections in families of elliptic curves and semi-abelian vareities over function fields. In view of transcendental number theory, I formulated and proved the Ax-Schanuel type theorem by making use of the value distribution theory, that provides the basis for future researches of the theory and the o-minimal theory.
(2) Regarding the basics of complex analysis in several variables, Istudied Kiyoshi Oka's unpublished papers, revealed new knowledges which had been over looked. Based on the results, I investigated a new easier appraoch to develop the theory of several complex varaibles as the Oka theory; in practice, I published such four textbooks.

Academic Significance and Societal Importance of the Research Achievements

前研究課題「15K04917」で端緒が見出された高次元値分布理論-ディオファントス幾何-o-minimal理論の関係について研究が進んだ。超越数論におけるAx-Schanuelの定理にはo-minimal理論を含めた幾つかの証明が知られていたが、値分布理論を用いた証明が得られたことは興味深い。未だo-minimal理論との関係は未開発で今後の研究に待つ。
多変数複素解析の基礎をなす岡潔の成果は、これまで岡-Cartan理論として認識され紹介されてきた。入門理論としてはレベルが高く講義も易しくはない。本研究によりむしろ元の岡理論として入門的な方法が開発されたのは社会的に意義深いと考える。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (52 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (8 results) Journal Article (13 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 6 results) Presentation (24 results) (of which Int'l Joint Research: 13 results,  Invited: 15 results) Book (5 results) Remarks (2 results)

  • [Int'l Joint Research] Academia Sinica, Taipei, Taiwan(その他の国・地域)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Universite de Lorraine, Nancy(フランス)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Pietro Corvaja/Dipartimento di Scienze Matematiche/Universitta di Udine(イタリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Umberto Zannier/Classe di scienze/Scuola Normale Superiore ,Pisa(イタリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Dipartimento di Scienze Matematiche,/Informatiche e Fisiche/Universitta di Udine(イタリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Scuola Normale Superiore/Pisa(イタリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Pietro Corvaja/Depart. of Math., Inform. and Phys./University of Udine(イタリア)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Umberto Zannier/Scoula Normale Superiore/Pisa(イタリア)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Analytic Ax–Schanuel for semi-abelian varieties and Nevanlinna theory2024

    • Author(s)
      NOGUCHI Junjiro
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 76 Issue: 1 Pages: 1-22

    • DOI

      10.2969/jmsj/89588958

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 多変数複素解析の新展開2024

    • Author(s)
      野口潤次郎
    • Journal Title

      日本数学会『数学』論説,掲載待ち.

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analytic Ax-Schanuel for semi-abelian varieties and Nevanlinna theory2023

    • Author(s)
      Noguchi Junjiro
    • Journal Title

      J. Math. Soc. Japan

      Volume: Accepted

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Memorial Tribute , Masatake Kuranishi (1924-2021)2022

    • Author(s)
      Noguchi Junjiro
    • Journal Title

      Notices Amer. Math. Soc.

      Volume: 69(5) Pages: 799-800

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] On Kiyoshi Oka's unpublished papers in 19432022

    • Author(s)
      Noguchi Junjiro
    • Journal Title

      Notices of the International Consortium of Chinese Mathematicians

      Volume: 10 Issue: 1 Pages: 44-70

    • DOI

      10.4310/iccm.2022.v10.n1.a3

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 複素解析への入門―A.L.コーシーから岡潔まで2022

    • Author(s)
      野口 潤次郎
    • Journal Title

      数理科学,サイエンス社

      Volume: 8月号 Pages: 7-10

    • Related Report
      2022 Research-status Report
  • [Journal Article] 数学と言葉―岡潔生誕120年によせて2022

    • Author(s)
      野口 潤次郎
    • Journal Title

      数学通信,日本数学会

      Volume: 26(4) Pages: 5-21

    • Related Report
      2022 Research-status Report
  • [Journal Article] Analytic and rational sections of relative semi-abelian varieties2022

    • Author(s)
      Corvaja Pietro、Noguchi Junjiro、Zannier Umberto
    • Journal Title

      Pure and Applied Mathematics Quarterly

      Volume: 18 Issue: 1 Pages: 177-209

    • DOI

      10.4310/pamq.2022.v18.n1.a5

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] On Kiyoshi Oka's Unpublished Papers in 19432022

    • Author(s)
      Noguchi, Junjiro
    • Journal Title

      Notices ICCM

      Volume: accepted

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 数学と言葉ー岡潔生誕120年によせて2022

    • Author(s)
      野口 潤次郎
    • Journal Title

      数学通信,日本数学会

      Volume: 26-4 Pages: 5-21

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Analytic and rational sections of relative semi-abelian varieties2020

    • Author(s)
      P. Corvaja, J. Noguchi and U. Zannier
    • Journal Title

      Pure Appl. Math. Quarterly

      Volume: 17

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A weak coherence theorem and remarks to the Oka theory2019

    • Author(s)
      Junjiro Noguchi
    • Journal Title

      Kodai Mathematical Journal

      Volume: 42 Issue: 3 Pages: 566-586

    • DOI

      10.2996/kmj/1572487232

    • NAID

      130007742200

    • ISSN
      0386-5991, 1881-5472
    • Year and Date
      2019-10-31
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A brief chronicle of the Levi (Hartog’s inverse) problem, coherence and open problem2019

    • Author(s)
      Junjiro Noguchi
    • Journal Title

      Notices of the International Congress of Chinese Mathematicians

      Volume: 7 Issue: 2 Pages: 19-24

    • DOI

      10.4310/iccm.2019.v7.n2.a2

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] On Lang's conjecture, number of rational sections and related topics2024

    • Author(s)
      NOGUCHI Junjiro
    • Organizer
      Index Theory and Complex Geometry Part 2
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On hyperbolicity, Diophantine geometry and some open questions2024

    • Author(s)
      NOGUCHI Junjiro
    • Organizer
      Seminar at Isaac Newton Institute for Mathematical Sciences
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Geometric bound of the number of rational points in the Manin-Grauert Theorem2023

    • Author(s)
      NOGUCHI Junjiro
    • Organizer
      The 29th Symposium on Complex Geometry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Some transcendence problems in arithmetic and analytic functions2023

    • Author(s)
      NOGUCHI Junjiro
    • Organizer
      Qualitative and Quantitative Advances in Complex and Diophantine Geometry, Academia Sinica, Taipei, Taiwan
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 擬凸問題解決の岡のオリジナル法と別証明とされるGrauertの証明との間のFredholm定理をめぐる類似性について2023

    • Author(s)
      野口 潤次郎
    • Organizer
      弱連接定理に基づいた多変数関数論の基礎づけ(早稲田大学教育学部)
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 多変数複素解析入門講義法2023

    • Author(s)
      野口 潤次郎
    • Organizer
      複素解析幾何セミナー(東大数理)
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Ax-Schanuel theorem and Nevanlinna theory-an application2022

    • Author(s)
      Noguchi Junjiro
    • Organizer
      Seminar in Harmonic Analysis, Paris Sud
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Analytic Ax-Schanuel Theorem for semi-abelian varieties and Nevanlinna theory2022

    • Author(s)
      Noguchi Junjiro
    • Organizer
      The 28th Symposium on Complex Geometry
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On analytic Ax-Schanuel I2022

    • Author(s)
      野口 潤次郎
    • Organizer
      日本数学会秋季総合分科会
    • Related Report
      2022 Research-status Report
  • [Presentation] On analytic Ax-Schanuel II2022

    • Author(s)
      野口 潤次郎
    • Organizer
      日本数学会秋季総合分科会
    • Related Report
      2022 Research-status Report
  • [Presentation] Analytic Ax-Schanuel for semi-abelian varieties and Nevanlinna theory2022

    • Author(s)
      Noguchi Junjiro
    • Organizer
      Deformations of Geometric Structures in Current Mathematics: “A celebration of the works of Masatake Kuranishi”, Columbia University, New York
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Analytic Ax-Schanuel Theorem for semi-abelian varieties and Nevanlinna theory (Japanese)2022

    • Author(s)
      野口 潤次郎
    • Organizer
      東京大学大学院数理科学研究科・複素解析幾何セミナー
    • Related Report
      2021 Research-status Report
  • [Presentation] 数学と言葉ー岡潔生誕120年によせて2021

    • Author(s)
      野口 潤次郎
    • Organizer
      日本数学会秋季総合分科会・市民講演会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 解けない問題・気になる問題2021

    • Author(s)
      野口 潤次郎
    • Organizer
      函数論シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 擬凸領域二題2020

    • Author(s)
      野口潤次郎
    • Organizer
      複素解析幾何セミナー(東大・数理)
    • Related Report
      2020 Research-status Report
  • [Presentation] Bochner's Tube Theorem and Kashiwara's Local Version2020

    • Author(s)
      野口潤次郎
    • Organizer
      第26回 複素幾何シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Weak coherence theorem and a new introductory approach to S.C.V. - Oka theory I, II2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Seminar, CIRGET, University of Quebec at Montreal
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Some relations of the value distribution theory and the Diophantine geometry at the proof level2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Diophantine Approximation and Value Distribution Theory at the interface of Arithmetic and Complex Hyperbolic Geometry.
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] The value distribution and some arithmetic properties on semi-abelian vareities2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Complex Analysis Seminar, Bochum University
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A new introductory lecture of Several Complex Variables - Oka theory, I, II, III2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Topics on Nevanlinna theory and complex hyperbolicities, SCMS, Shanghai
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nevanlinna theory for semi-abelian varieties and some arithmetic properties2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Topics on Nevanlinna theory and complex hyperbolicities, SCMS, Shanghai
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] On Kiyoshi Oka's unpublished papers 19432019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      複素解析幾何セミナー、東大数理
    • Related Report
      2019 Research-status Report
  • [Presentation] Value distribution theory on semi-abelian varieties and arithmetic problems2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      The 25th Symposium of Complex Geometry, Kanazawa 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 正則曲線の値分布の最近の進展といくつかの問題2019

    • Author(s)
      野口潤次郎
    • Organizer
      2019年度等角写像・値分布理論研究集会、東北大学
    • Related Report
      2019 Research-status Report
    • Invited
  • [Book] 複素解析-一変数・多変数の関数2024

    • Author(s)
      相原義弘・野口潤次郎(共著)
    • Total Pages
      400
    • Publisher
      裳華房
    • ISBN
      9784785316051
    • Related Report
      2023 Annual Research Report
  • [Book] Basic Oka Theory in Several Complex Variables (in press)2024

    • Author(s)
      NOGUCHI Junjiro
    • Total Pages
      230
    • Publisher
      Springer-Nature
    • Related Report
      2023 Annual Research Report
  • [Book] 岡理論新入門ー多変数関数論の基礎2021

    • Author(s)
      野口 潤次郎
    • Total Pages
      256
    • Publisher
      裳華房
    • ISBN
      9784785315900
    • Related Report
      2021 Research-status Report
  • [Book] 新岡理論入門2021

    • Author(s)
      野口潤次郎
    • Total Pages
      250
    • Publisher
      裳華房(株)
    • Related Report
      2020 Research-status Report
  • [Book] 多変数解析関数論(第2版)2019

    • Author(s)
      野口 潤次郎
    • Total Pages
      404
    • Publisher
      朝倉書店
    • ISBN
      9784254111576
    • Related Report
      2019 Research-status Report
  • [Remarks] 野口潤次郎の電網掲示板 (Home Page of Noguchi, Junjiro)

    • URL

      https://www.ms.u-tokyo.ac.jp/~noguchi/

    • Related Report
      2023 Annual Research Report 2022 Research-status Report 2019 Research-status Report
  • [Remarks] 野口潤次郎の電網掲示板 (Home Page of Noguchi, Junjiro)

    • URL

      https://www.ms.u-tokyo.ac.jp/~noguchi/index.html

    • Related Report
      2021 Research-status Report 2020 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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