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Research of arithmetical properties for analytic functions satisfying a system of linear functional equations

Research Project

Project/Area Number 18540012
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionGunma University

Principal Investigator

AMOU Masaaki  Gunma University, 大学院・工学研究科, 准教授 (60201901)

Co-Investigator(Kenkyū-buntansha) SAITO Saburo  群馬大学, 大学院・工学研究科, 教授 (10110397)
AMANO Kazuo  群馬大学, 大学院・工学研究科, 准教授 (90137795)
KATSURADA Masanori  慶応義塾大学, 経済学部, 教授 (90224485)
Co-Investigator(Renkei-kenkyūsha) SAITO Saburo  群馬大学, 大学院・工学研究科, 教授 (10110397)
AMANO Kazuo  群馬大学, 大学院・工学研究科, 准教授 (90137795)
KATSURADA Masanori  慶応義塾大学, 経済学部, 教授 (90224485)
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,060,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥660,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordsq-関数 / G-関数 / パデ近似 / 1次独立性 / 超越測度 / q一関数 / G一関数
Research Abstract

K.Vaananen教授(オウル大学)との共同研究により、Mahler型線形関数方程式の鎖を満たす解析関数の特殊値について種々の結果を得た。特に、無限積で表される関数の場合に、それらの関数全体が乗法群を作ることを利用して、特殊値の代数的独立性を証明することに成功した。また、Y.Bugeaud教授(ストラスブール大学)との共同研究により、整数係数多項式の解の分離性について調べ、その応用として、ほとんどすべての数が満たす超越測度の上界を改良した。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (8 results)

All 2009 2008 2007 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] On Siegel-Shidlovskii's theory for q-difference equations2007

    • Author(s)
      M.Amou, T.Matala-ach, K.Vaananen
    • Journal Title

      Acta Arith 127

      Pages: 309-335

    • Related Report
      2008 Final Research Report 2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On integer polynomials with multiple roots2007

    • Author(s)
      M.Amou, Yann Bugeaud
    • Journal Title

      Mathematika 54

      Pages: 83-92

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] On Siegel-Shidlovskii's theory for q-difference equations2007

    • Author(s)
      M.Amou, T.Matala-aho, K.Vaananen
    • Journal Title

      Acta Arith. (in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] On integer polynomials with multiple roots

    • Author(s)
      M.Amou, Yann Bugeaud
    • Journal Title

      Mathematika

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Algebraic independence of certain infinite products2009

    • Author(s)
      天羽雅昭
    • Organizer
      Diophantine Analysis and Related Fields 2009
    • Place of Presentation
      東京
    • Year and Date
      2009-03-03
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Linear independence of the values of q-series2008

    • Author(s)
      天羽雅昭
    • Organizer
      Numbers, Functions, Equations 08
    • Place of Presentation
      Noszvaj(ハンガリ-)
    • Year and Date
      2008-06-19
    • Related Report
      2008 Final Research Report
  • [Presentation] Linear independence of the values of q-series2008

    • Author(s)
      天羽雅昭
    • Organizer
      Numbers, Functions, Equations'08
    • Place of Presentation
      Nszvaj(ハンガリー)
    • Year and Date
      2008-06-19
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.tech.gunma-u.ac.jp/gakka/Kyotsuhtm

    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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