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2013 Fiscal Year Final Research Report

Analytic, Algebraic and Combinatorial studies on continued fractions

Research Project

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Project/Area Number 22540005
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

KOMATSU Takao  弘前大学, 理工学研究科, 教授 (70300556)

Co-Investigator(Renkei-kenkyūsha) MUNEMASA Akihiro  東北大学, 大学院情報科学研究科, 教授 (50219862)
AKIYAMA Shigeki  筑波大学, 大学院数理物質科学研究科, 教授 (60212445)
TANAKA Takaaki  慶応義塾大学, 理工学部, 講師 (60306850)
Project Period (FY) 2010-04-01 – 2014-03-31
Keywords数論 / 代数学 / 組み合わせ論 / 連分数
Research Abstract

Analytic studies of continued fractions are to obtain exact algebraic expressions for approximation evalucations of various Hurwitz and Tasoev continued fractions, some relations between Fibonacci-zeta functions and continued fractions, and some relations between zeta functions and Cauchy polynomials. Algebraic studies of continued fractions are to obtain independence measures of arithmetic functions and to construct Liouville numbers in non- Archimedean case. Combinatorial studies of continued fractions are to give upper bounds on cyclotomic numbers, and to discover linear recurrence relations associated with multinomial Pascal triangles. In addition, cross-studies of continued fractions are to show some relations among continued fractions, Fibonacci numbers and congruent numbers, and to discover the concept of poly Cauchy numbers and polynomials as some generalizations of Cauchy numbers, which are related with Bernoulli numbers.

  • Research Products

    (27 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (14 results) (of which Peer Reviewed: 14 results) Presentation (12 results) (of which Invited: 4 results) Remarks (1 results)

  • [Journal Article] A generalization of poly-Cauchy numbers and their properties2013

    • Author(s)
      Takao Komatsu, V. Laohakosol and K. Liptai
    • Journal Title

      Abstract Appl. Anal.

      Volume: Article ID 179841 Pages: 8

    • Peer Reviewed
  • [Journal Article] Poly-Cauchy polynomials2013

    • Author(s)
      Takao Komatsu and K. Kamano
    • Journal Title

      Mosc. J. Comb. Number Theory

      Volume: 3 Pages: 181-207

    • Peer Reviewed
  • [Journal Article] On convergents of certain values of hyperbolic functions formed from Diophantine equations2013

    • Author(s)
      T. Chaichana, Takao Komatsu and V. Laohakosol
    • Journal Title

      Tokyo J. Math.

      Volume: 36 Pages: 239-251

    • Peer Reviewed
  • [Journal Article] On the distance between products of consecutive Fibonacci numbers and powers of Fibonacci numbers2013

    • Author(s)
      J. J. Bravo, Takao Komatsu and F. Luca
    • Journal Title

      Indag. Math.

      Volume: 24 Pages: 181-198

    • Peer Reviewed
  • [Journal Article] Hypergeometric Cauchy numbers2013

    • Author(s)
      Takao Komatsu
    • Journal Title

      Int. J. Number Theory

      Volume: 9 Pages: 545-560

    • Peer Reviewed
  • [Journal Article] Poly-Cauchy numbers with a q parameter2013

    • Author(s)
      Takao Komatsu
    • Journal Title

      Ramanujan J.

      Volume: 31 Pages: 353-371

    • Peer Reviewed
  • [Journal Article] Upper bounds on cyclotomic numbers2013

    • Author(s)
      K. Betsumiya, M. Hirasaka, Takao Komatsu and A. Munemasa
    • Journal Title

      Linear Algebra Appl.

      Volume: 438 Pages: 111-120

    • Peer Reviewed
  • [Journal Article] Poly-Cauchy numbers2013

    • Author(s)
      Takao Komatsu
    • Journal Title

      Kyushu. J. Math.

      Volume: 67 Pages: 143-153

    • Peer Reviewed
  • [Journal Article] Some exact algebraic expressions for the tails of Tasoev continued fractions2012

    • Author(s)
      Takao Komatsu
    • Journal Title

      J. Austral. Math. Soc.

      Volume: 92 Pages: 179-193

    • Peer Reviewed
  • [Journal Article] Independence measures of arithmetic functions II2012

    • Author(s)
      Takao Komatsu, V. Laohakosol and P. Ruengsinsub
    • Journal Title

      Acta Arith.

      Volume: 153 Pages: 199-216

    • Peer Reviewed
  • [Journal Article] On the sum of reciprocal generalized Fibonacci numbers2011

    • Author(s)
      S. H. Holliday and Takao Komatsu
    • Journal Title

      INTEGERS

      Volume: 11 Pages: 441-455

    • Peer Reviewed
  • [Journal Article] Independence measures of arithmetic functions2011

    • Author(s)
      Takao Komatsu, V. Laohakosol and P. Ruengsinsub
    • Journal Title

      J. Number Theory

      Volume: 131 Pages: 1-17

    • Peer Reviewed
  • [Journal Article] Powers of Sierpinski numbers base b2010

    • Author(s)
      C. K. Caldwell and Takao Komatsu
    • Journal Title

      INTEGERS

      Volume: 10 Pages: 423-436

    • Peer Reviewed
  • [Journal Article] Liouville numbers in non-Archimedean situation2010

    • Author(s)
      T. Chaichana, Takao Komatsu and V. Laohakosol
    • Journal Title

      Publ. Math. Debrecen

      Volume: 77 Pages: 39-63

    • Peer Reviewed
  • [Presentation] $a$-, $q$-, $¥lambda$- generalization of poly-Bernoulli numbers and poly-Cauchy numbers2014

    • Author(s)
      Takao Komatsu
    • Organizer
      Korean–Japan Workshop on Algebra and Combinatorics 2014 (KJ2014)
    • Place of Presentation
      KAIST、韓国
    • Year and Date
      20140123-25
    • Invited
  • [Presentation] Convolution identities for Cauchy numbers2013

    • Author(s)
      Takao Komatsu
    • Organizer
      Integers Conference
    • Place of Presentation
      University of West Georgia, USA
    • Year and Date
      20131024-27
  • [Presentation] Some remarks on poly-Cauchy numbers and polynomials2013

    • Author(s)
      Takao Komatsu
    • Organizer
      JA2013
    • Place of Presentation
      フーリエ研究所、グルノーブル、フランス
    • Year and Date
      20130701-05
  • [Presentation] Poly-Cauchy numbers and their combinatorial properties2013

    • Author(s)
      Takao Komatsu
    • Organizer
      The 13th Japan-Korea Workshop on Algebra and Combinatorics
    • Place of Presentation
      九州大学
    • Year and Date
      20130124-25
  • [Presentation] Poly-Cauchy polynomials2012

    • Author(s)
      Takao Komatsu
    • Organizer
      RAMA8(8eme Rencontre d'Analyse Mathematique et ses Applications)
    • Place of Presentation
      USTHB アルジェ(アルジェリア)
    • Year and Date
      20121126-29
    • Invited
  • [Presentation] Poly-Cauchy numbers and their characteristic properties2012

    • Author(s)
      Takao Komatsu
    • Organizer
      ICNA2012 (International conference in Number Theory and applications 2012)
    • Place of Presentation
      カセットサート大学タイ王国
    • Year and Date
      20121024-26
    • Invited
  • [Presentation] Some relationships between poly-Cauchy numbers and poly-Bernoulli numbers2012

    • Author(s)
      Takao Komatsu
    • Organizer
      The 15th International Conference on Fibonacci numbers and their applications
    • Place of Presentation
      エステルハーズィ・カーロィ教育大学 エゲル ハンガリー
    • Year and Date
      20120625-29
  • [Presentation] Hypergeometric Cauchy numbers2012

    • Author(s)
      Takao Komatsu
    • Organizer
      数系と置換2012
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      20120604-05
  • [Presentation] Diophantine approximations of Hurwitz and Tasoev continued fractions2011

    • Author(s)
      Takao Komatsu
    • Organizer
      International Skorobohat'ko Mathematical Conference
    • Place of Presentation
      Ivan Franko Pedagogical University of Drohobych, Drohobych, ウクライナ
    • Year and Date
      20110919-23
  • [Presentation] Three-term leaping recurrence relations and their extensions2011

    • Author(s)
      Takao Komatsu
    • Organizer
      DIMACOS11-FSTM, International Conference on Discrete Mathematics & Computer Sciences
    • Place of Presentation
      ハッサン第2大学、モハメディア、モロッコ
    • Year and Date
      20110505-08
    • Invited
  • [Presentation] Hurwitz連分数, Tasoev連分数と¥¥ディオファントス近似2011

    • Author(s)
      小松尚夫
    • Organizer
      日本数学会東北支部会
    • Place of Presentation
      東北大学川井ホール(特別講演)
    • Year and Date
      2011-02-19
  • [Presentation] On the nearest integer of the sum of reciprocal Fibonacci numbers2010

    • Author(s)
      Takao Komatsu
    • Organizer
      The 14th International Conference on Fibonacci numbers and their applications
    • Place of Presentation
      メキシコ国立自治大学モレリア数学研究所
    • Year and Date
      20100705-09
  • [Remarks]

    • URL

      http://www.st.hirosaki-u.ac.jp/~komatsu/kenkyu.html

URL: 

Published: 2015-07-16  

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