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2018 Fiscal Year Annual Research Report

Study of complex analytic maps, Vojta's conjecture and invariants

Research Project

Project/Area Number 15K04917
Research InstitutionThe University of Tokyo

Principal Investigator

野口 潤次郎  東京大学, 大学院数理科学研究科, 名誉教授 (20033920)

Project Period (FY) 2015-04-01 – 2019-03-31
Keywords解析学 / 関数論 / 多変数複素解析学 / 値分布理論 / Vojta予想
Outline of Annual Research Achievements

値分布とVojta予想の研究について、ディオファントス幾何に関する国際会議に於ける研究交流が蹶起となり、超越的な値分布理論とディオファントス幾何に関して命題文レベルに於けるアナロジー(例、Lang予想, Vojta予想)だけでなく更に一歩深い証明レベルでの関係が見出された。すなわち、本代表者が1981年に発表した準アーベル多様体に対するピカールの定理が、その上のねじれ点分布に関するRaynaudの定理(1983)の証明に適用されることが判明した。このような証明レベルでの直接的関係は、かねてより本研究代表者は求めていた。しかし、ロジック・モデル理論の極小順序構造論(o-minimal structure theory)が両者の仲立ちをするという認識は当該研究課題開始時にはなかったもので,興味深い成果である。現在この成果を踏まえて、P. Corvaja (Udine), U. Zannier (Pisa, E.N.S.)と共同で準アーベル概形の正則切断のて研究を進めている。
岡理論において残された問題の研究について、分岐リーマン領域のレビ(ハルトークスの逆)問題の成立する十分条件を初めて与えた。あるアーベル積分を用いるスカラー不変量の導入がポイントであった。応用として、これよりBehnke-Steinの定理(1949)の新証明が得られた。岡の連接定理の証明の分析より「弱連接定理」を定式化した.これを用いて岡潔の解決した3大問題について,収束巾級数とクザン積分(コーシー積分の半分積分)のみを用いる全く初等的な証明法を見出した。ここまでの初等化は研究課題開始時には想定していなかった成果である。今後は、これを更に整備したい。
以上の成果をもって、国際会議を含む多くの内外の会議・研究集会に参加、講演し、多くの参加者と研究交流を行い、本研究成果の国際発信を行った。

  • Research Products

    (42 results)

All 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (13 results) (of which Peer Reviewed: 12 results,  Open Access: 6 results) Presentation (24 results) (of which Int'l Joint Research: 13 results,  Invited: 17 results) Book (2 results) Remarks (1 results)

  • [Int'l Joint Research] Udine/University of Udine(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      Udine/University of Udine
  • [Int'l Joint Research] Pisa/Ecole Normal Superieur(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      Pisa/Ecole Normal Superieur
  • [Journal Article] A weak coherence theorem and remarks to the Oka theory2019

    • Author(s)
      Junjiro Noguchi
    • Journal Title

      Kodai Math. J.

      Volume: 印刷中 Pages: -

    • Peer Reviewed / Open Access
  • [Journal Article] A brief chronicle of the Levi (Hartogs' Inverse) Problem, Coherence and an open problem2019

    • Author(s)
      Junjiro Noguchi
    • Journal Title

      Notices Intern. Cong. Chin. Math.

      Volume: 印刷中 Pages: -

    • Peer Reviewed / Open Access
  • [Journal Article] L^2 proof of Nishino's rigidity theorem2019

    • Author(s)
      Takeo Ohsawa
    • Journal Title

      Kyoto J. Math.

      Volume: 印刷中 Pages: -

    • Peer Reviewed
  • [Journal Article] A role of the L^2 method in analytic families2019

    • Author(s)
      Takeo Ohsawa
    • Journal Title

      Proc. Conf. to the memory of Ohkawa

      Volume: 印刷中 Pages: -

    • Peer Reviewed
  • [Journal Article] A survey on the L^2 extension theorems2019

    • Author(s)
      Takeo Ohsawa
    • Journal Title

      J. Geom. Analy.

      Volume: 印刷中 Pages: -

    • Peer Reviewed
  • [Journal Article] Variational formulas for principal functions and applications2019

    • Author(s)
      Sachiko Hamano
    • Journal Title

      Proc. of Conference on Teichmuller and Grothendieck-Teichmuller theories; Chern Institute Nankai July 24-30 2016 (eds. L. Ji et al.) Nankai Ser. Pure,Appl. Math. Theoret. Phy., World Scie.

      Volume: 印刷中 Pages: -

    • Open Access
  • [Journal Article] A filling-in problem and moderate degenerations of minimal algebraic varieties2019

    • Author(s)
      Takayama Shigeharu
    • Journal Title

      Algebraic Geometry

      Volume: 27 Pages: 26~49

    • DOI

      10.14231/AG-2019-002

    • Peer Reviewed / Open Access
  • [Journal Article] Pseudo Kobayashi hyperbolicity of subvarieties of general type on abelian varieties2019

    • Author(s)
      Katsutoshi Yamanoi
    • Journal Title

      J. Math. Soc. Japan

      Volume: 71-1 Pages: 259-298

    • DOI

      10.2969/jmsj/75817581

    • Peer Reviewed / Open Access
  • [Journal Article] 数学と言語表現について2018

    • Author(s)
      野口 潤次郎
    • Journal Title

      数学教育学会誌

      Volume: 58 Pages: 75-85

    • Peer Reviewed / Open Access
  • [Journal Article] An application of the value distribution theory for semi-abelian varieties to problems of Ax?Lindemann and Manin?Mumford types2018

    • Author(s)
      Noguchi Junjiro
    • Journal Title

      Rendiconti Lincei - Matematica e Applicazioni

      Volume: 29 Pages: 401~411

    • DOI

      10.4171/RLM/813

    • Peer Reviewed
  • [Journal Article] Variation of Schiffer and hyperbolic spans under pseudoconvexity2018

    • Author(s)
      Sachiko Hamano
    • Journal Title

      Geometric Complex Analysis Eds. J. Byun et al.,Springer Proc. in Math.&Statist. Springer Nature Singapore Pte Ltd.

      Volume: 246 Pages: 171 - 178

    • Peer Reviewed
  • [Journal Article] On a convex level set of a plurisubharmonic function and the support of the Monge-Amp`ere current2018

    • Author(s)
      Yusaku Tiba
    • Journal Title

      Math. Annal. Polonici Mathematici

      Volume: 121 Pages: 251-262

    • Peer Reviewed
  • [Journal Article] Positivity of twisted relative pluricanonical bundles and their direct images2018

    • Author(s)
      Mihai Paun and Shigeharu Takayama
    • Journal Title

      J. Algebraic Geom.

      Volume: 27 Pages: 211-272

    • Peer Reviewed
  • [Presentation] A big Picard theorem for semi-abelian varieties and torsion points2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Geometric Analysis in honor of Bernie Shiffman (Johns Hopkins University)
    • Int'l Joint Research / Invited
  • [Presentation] A new introductory lectures of S.C.V.-Oka theory2019

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Workshop on Holomorphic Maps,Pluripotentials and Complex Geometry
    • Int'l Joint Research / Invited
  • [Presentation] Splitting theorems on complete Kahler manifolds by the L^2 method2019

    • Author(s)
      Takeo Ohsawa
    • Organizer
      1147th AMS meeting; University of Hawai'i at Manoa (USA)
    • Int'l Joint Research
  • [Presentation] 種数1のある開リーマン面の擬凸変動に対する同時一意化について2019

    • Author(s)
      濱野 佐知子
    • Organizer
      東北複素解析セミナー (東北大学情報科学研究科)
    • Invited
  • [Presentation] Variation of the a-span of an open Riemann surface and pseudoconvexity2019

    • Author(s)
      Sachiko Hamano
    • Organizer
      Complex Analytic Geometry Seminar (Pohang University of Science and Technology, Kora)
    • Int'l Joint Research
  • [Presentation] Picardの大定理とManin-Mumford予想 (Raynaudの定理)2018

    • Author(s)
      野口 潤次郎
    • Organizer
      東大数理複素解析幾何セミナー
  • [Presentation] On some arithmetic problems on torsion points and Kobayahi hyperbolic projective hypersurfaces2018

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Seminar of the value distribution theory (Tokyo)
    • Int'l Joint Research
  • [Presentation] A big Picard theorem and the Manin-Mumford conjecture2018

    • Author(s)
      Junjiro Noguchi
    • Organizer
      Winter meeting of Canadian Mathematical Society, Vancouber
    • Int'l Joint Research
  • [Presentation] 高次元Picardの大定理,Manin-Mumford予想と関連する話題2018

    • Author(s)
      野口 潤次郎
    • Organizer
      多変数冬セミナー(大阪市立大学)
    • Invited
  • [Presentation] L^2 proof of Nishino's rigidity theorem2018

    • Author(s)
      Takeo Ohsawa
    • Organizer
      CR geometry and PDE's VIII (Levico Terme;Italy)
    • Int'l Joint Research / Invited
  • [Presentation] Variation of the a-span of an open Riemann surface and pseudoconvexity2018

    • Author(s)
      Sachiko Hamano
    • Organizer
      Hong Kong Geometry Colloquium (The University of Hong Kong)
    • Int'l Joint Research / Invited
  • [Presentation] 有限種数開リーマン面のa-スパンと擬凸領域2018

    • Author(s)
      濱野 佐知子
    • Organizer
      名城大学・ポテンシャル論セミナー
    • Invited
  • [Presentation] Variational formulas for hydrodynamic differentials and its application2018

    • Author(s)
      Sachiko Hamano
    • Organizer
      The 12th AIMS Conf. on Dynam. Syst. Diff. Eqs. Appl. Special Session 97:Analysis and Dynamics on Boundaries of Manifolds and Related Topics (National Taiwan University)
    • Int'l Joint Research / Invited
  • [Presentation] Pseudoconvex domains fibered by open Riemann surfaces of the same topological type2018

    • Author(s)
      濱野 佐知子
    • Organizer
      研究集会「リーマン面に関連する位相幾何学」(東大数理)
    • Invited
  • [Presentation] Pseudoconvex domains fibered by open Riemann surfaces of the same topological type,New Trends in Teichmuller Theory and Mapping Class Groups2018

    • Author(s)
      Sachiko Hamano
    • Organizer
      Meetings at Oberwolfach
    • Int'l Joint Research / Invited
  • [Presentation] Variational formulas for hydrodynamic differentials and its application2018

    • Author(s)
      Sachiko Hamano
    • Organizer
      102e rencontre entre mathematiciens et physiciens theoriciens (Institut de Recherche Mathematique Avancee (University of Strasbourg and CNRS)
    • Int'l Joint Research / Invited
  • [Presentation] 流体力学的微分の変分公式とその応用について2018

    • Author(s)
      濱野 佐知子
    • Organizer
      研究集会「Geometry of Riemann surfaces and related topics」(金沢大学サテライト・プラザ)
    • Invited
  • [Presentation] 流体力学的微分の変分公式とその応用について2018

    • Author(s)
      濱野 佐知子
    • Organizer
      平成30年度 等角写像論・値分布論研究集会 (大阪府立大学)
    • Invited
  • [Presentation] The cohomology of non-pluriharmonic loci2018

    • Author(s)
      千葉 優作
    • Organizer
      日本数学会2018年度秋季総合分科会 (岡山大学)
  • [Presentation] The cohomology of non-pluriharmonic loci2018

    • Author(s)
      千葉 優作
    • Organizer
      多変数関数論冬セミナー (大阪市立大学)
  • [Presentation] Degeneration of Kahler-Einstein manifolds2018

    • Author(s)
      Shigeharu Takayama
    • Organizer
      2018 International conference on complex geometry and several complex variables,Chinese Academy of Sciences (Beijin)
    • Int'l Joint Research / Invited
  • [Presentation] Discretization of K"ahler-Ricci flows2018

    • Author(s)
      辻 元
    • Organizer
      複素幾何シンポジウム 金沢
    • Int'l Joint Research / Invited
  • [Presentation] Invariant measures in complex geometry2018

    • Author(s)
      辻 元
    • Organizer
      岡シンポジウム 奈良女子大
    • Invited
  • [Presentation] Monge-Amp`ere foliations associated with canonical measure2018

    • Author(s)
      辻 元
    • Organizer
      多変数関数論冬セミナー 大阪市大
    • Invited
  • [Book] L^2 approaches in several complex variables--towards the Oka-Cartan theory with precise bounds (Second Edition)2018

    • Author(s)
      Takeo Ohsawa
    • Total Pages
      269
    • Publisher
      Springer Japan
    • ISBN
      9784431568513
  • [Book] 多変数複素解析(増補版)2018

    • Author(s)
      大沢 健夫
    • Total Pages
      166
    • Publisher
      岩波書店,
    • ISBN
      9784000063326
  • [Remarks] 野口潤次郎の電網掲示板 (Home Page of Noguchi, Junjiro)

    • URL

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

URL: 

Published: 2019-12-27  

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