• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2016 Fiscal Year Annual Research Report

Formulations of the tropical Nevanlinna-Cartan theory and their returns for complex analytic methods

Research Project

Project/Area Number 25400131
Research InstitutionKanazawa University

Principal Investigator

藤解 和也  金沢大学, 電子情報学系, 教授 (30260558)

Project Period (FY) 2013-04-01 – 2017-03-31
Keywords超離散 / ネバンリンナ理論 / 超離散方程式 / 有理型函数 / max-plus代数 / 国際研究者交流 / Finland / Joensuu
Outline of Annual Research Achievements

トロピカル射影空間への正則曲線の値分布理論をより詳細に議論した結果を R.Korhonenとの共著 Second main theorem in the tropical projective space, Advances in Mathematics, 298(2016), no. 6, 693-8211;725で発表した。複素解析学に於ける典型的な結果のいくつかを、トロピカル関数の観点から書き直すという方針のもとに、函数方程式の有理型函数解を対象にした書き換えについて研究して、I.Laineと K.Liuとの共著 Tropical variants of some complex analysis results, Ann. Acad. Sci. Fenn. Math. 41(2016), no.2, 923-946にまとめた。これらは先に出版した書籍を完成する過程で動機づけられた研究の成果であり、現在も引き続き研究を進行している。さらに本研究では複素解析学への成果の還元も目標に掲げていたが、以下2件の論文でその目標の一部を達成している:
R. Kohonen; N. Li; K. Tohge, Difference analogue of Cartan’s second main theorem for slowly moving periodic targets, Ann. Acad. Sci. Fenn. Math. 41 (2016), no.2, 523-549.
J. Heittokangas; I. Laine; K. Tohge; Z.-T. Wen, Completely regular growth solutions of second order complex linear differential equations. Ann. Acad. Sci. Fenn. Math. 40(2015), no.2, 985-1003.

  • Research Products

    (7 results)

All 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 3 results,  Acknowledgement Compliant: 3 results) Presentation (2 results) (of which Invited: 2 results)

  • [Int'l Joint Research] University of Eastern Finland(Finland)

    • Country Name
      Finland
    • Counterpart Institution
      University of Eastern Finland
  • [Int'l Joint Research]

    • # of Other Countries
      3
  • [Journal Article] Second main theorem in the tropical projective space2016

    • Author(s)
      Korhonen, Risto; Tohge, Kazuya
    • Journal Title

      Advances in Mathematics

      Volume: 298 Pages: 693ー725

    • DOI

      http://doi.org/10.1016/j.aim.2016.05.003

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Tropical variants of some complex analysis results2016

    • Author(s)
      Laine, Ilpo; Liu, Kai; Tohge, Kazuya
    • Journal Title

      Annales Academiæ Scientiarum Fennicæ. Mathematica

      Volume: 41 Pages: 923ー946

    • DOI

      10.5186/aasfm.2016.4159

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Difference analogue of Cartan's second main theorem for slowly moving periodic targets2016

    • Author(s)
      Korhonen, Risto; Li, Nan; Tohge, Kazuya
    • Journal Title

      Annales Academiæ Scientiarum Fennicæ. Mathematica

      Volume: 41 Pages: 523ー549

    • DOI

      10.5186/aasfm.2016.4131

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Meromorphic functions that share four or five pairs of values2017

    • Author(s)
      Kazuya Tohge
    • Organizer
      Mathematics research seminar
    • Place of Presentation
      University of Eastern Finland
    • Year and Date
      2017-03-24
    • Invited
  • [Presentation] Meromorphic functions that share four or five pairs of values (joint work with Gary G. Gundersen and Norbert Steinmetz)2017

    • Author(s)
      Kazuya Tohge
    • Organizer
      平成28年度等角写像論・値分布論研究集会
    • Place of Presentation
      千葉大学理学部
    • Year and Date
      2017-01-21
    • Invited

URL: 

Published: 2018-01-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi