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2008 Fiscal Year Final Research Report

Ergodic theory and metric number theory

Research Project

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Project/Area Number 18340032
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General mathematics (including Probability theory/Statistical mathematics)
Research InstitutionKeio University

Principal Investigator

NAKADA Hitoshi  Keio University, 理工学部, 教授 (40118980)

Co-Investigator(Kenkyū-buntansha) MAEJIMA Makoto  慶應義塾大学, 理工学部, 教授 (90051846)
TAMURA Yozo  慶應義塾大学, 理工学部, 准教授 (50171905)
MIYAZAKI Takuya  慶應義塾大学, 理工学部, 准教授 (10301409)
TANAKA Takaaki  慶應義塾大学, 理工学部, 助教 (60306850)
ATSUJI Atsushi  慶應義塾大学, 経済学部, 教授 (00221044)
YASUDA Kumi  慶應義塾大学, 商学部, 准教授 (40284484)
ISHII Ippei  慶應義塾大学, 理工学部, 准教授 (90051929)
KATSURA Takeshi  慶應義塾大学, 理工学部, 講師 (50513298)
Co-Investigator(Renkei-kenkyūsha) NATSUI Rie  日本女子大学, 理学部, 助教 (60398633)
Project Period (FY) 2006 – 2008
Keywords連分数 / 非アルキメデス数体 / 測度論的数論 / 国際研究者交流
Research Abstract

エルゴード理論と深い係わり合いを持ついくつかの数論の問題について新しい研究成果を得た。また、近年数値計算のための準乱数生成などと係わり合いの深い非アルキメデス数体上のディオファンタス近似についてその測度論的性質をエルゴード理論や確率論の手法を用いて解の個数の評価についていくつかの研究結果を得た。また、このような問題に係わり合いの深い記号力学系の座標交換についてその不変確率の特徴づけを行った。

  • Research Products

    (17 results)

All 2009 2008 2007 2006 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (8 results)

  • [Journal Article] Natsui, Asymptotic behavior of the number of solutions for non-archimedean diophantine approximations with restricted denominators2008

    • Author(s)
      Valerie Berthe, Hitoshi Nakada, Rie Natsui
    • Journal Title

      Finite Fields Appl.14 no.4

      Pages: 849-866

    • Peer Reviewed
  • [Journal Article] The non-monotonicity of the entropy of a-continued fraction transformations2008

    • Author(s)
      Hitoshi Nakada, Rie Natsui
    • Journal Title

      Nonlinearity 21 no.6

      Pages: 1207-1225

    • Peer Reviewed
  • [Journal Article] Some ergodic properties of the negative slope algorithm2007

    • Author(s)
      Koshiro Ishimura, Hitoshi Nakada
    • Journal Title

      Osaka J. Math. 44 no.3

      Pages: 667-683

    • Peer Reviewed
  • [Journal Article] Invariance principles for Diophantine approximation of formal Laurent series over a finite base field2007

    • Author(s)
      Eveyth Deligero, Michael Fuchs, Hitoshi Nakada
    • Journal Title

      Finite Fields Appl. 13 no.3

      Pages: 535-545

    • Peer Reviewed
  • [Journal Article] Exchangeable, Gibbs and equilibrium measures for Markov subshifts2007

    • Author(s)
      Jon Aaronson, Hitoshi Nakada
    • Journal Title

      Ergodic Theory Dynam. Systems 27 no.2

      Pages: 321-339

    • Peer Reviewed
  • [Journal Article] Arithmetic distributions of convergents arising from Jacobi-Perron algorithm2006

    • Author(s)
      Valerie Berthe, Hitoshi Nakada, Rie Natsui
    • Journal Title

      Indag. Math. (N.S.) 17 no.2

      Pages: 169-185

    • Peer Reviewed
  • [Journal Article] Asymptotic behavior of the number of solutions for non-Archimedean Diophantine approximations2006

    • Author(s)
      Hitoshi Nakada, Rie Natsui
    • Journal Title

      Acta Arith. 125 no.3

      Pages: 203-214

    • Peer Reviewed
  • [Journal Article] Exchangeable measures for subshifts2006

    • Author(s)
      Jon Aaronson, Hitoshi Nakada, Omri Sarig
    • Journal Title

      Ann. Inst. H. Poincare Probab. Statist. 42 no.6

      Pages: 727-751

    • Peer Reviewed
  • [Journal Article] On the Lenstra constant associated to the Rosen continued fractions

    • Author(s)
      Hitoshi Nakada
    • Journal Title

      to appear in J. Eur. Math. Soc.

    • URL

      http://front.math.ucdavis.edu/0705.3756

    • Peer Reviewed
  • [Presentation] Entropy of a class of continued fraction maps2009

    • Author(s)
      仲田均
    • Organizer
      UK-Japan Winter School
    • Place of Presentation
      The university of Bath 大学(UK)
    • Year and Date
      2009-01-10
  • [Presentation] Asymptotic behavior of the number of solutions for non-Archimedean Diophantine approximation with restricted denominators2008

    • Author(s)
      夏井利恵
    • Organizer
      エルゴード理論とその周辺
    • Place of Presentation
      日本大学
    • Year and Date
      2008-11-29
  • [Presentation] Fully subtractive algorithm の dynamicsについて2008

    • Author(s)
      仲田均
    • Organizer
      Dynamics of complex systems 2008
    • Place of Presentation
      北海道大学
    • Year and Date
      2008-09-03
  • [Presentation] On the entropy of α-continued fraction transformations2007

    • Author(s)
      夏井利恵
    • Organizer
      エルゴード理論とその応用
    • Place of Presentation
      慶應義塾大学
    • Year and Date
      2007-12-21
  • [Presentation] On the non-monotonicity of the entropy of α-continued fraction transformations2007

    • Author(s)
      仲田均
    • Organizer
      Workshop on Dynamical systems and Number Theory 2007
    • Place of Presentation
      Storbl(Austria)
    • Year and Date
      2007-07-02
  • [Presentation] On the Lenstra constant associated to continued fractions2007

    • Author(s)
      仲田均
    • Organizer
      Renormalization small divisors continued fractions and geodesic flows
    • Place of Presentation
      SNS at Pisa (Italy)
    • Year and Date
      2007-04-26
  • [Presentation] Z^d 上の位相的マルコフシフトの位置交換可能測度と平衡状態について2006

    • Author(s)
      仲田均
    • Organizer
      エルゴード理論の展望
    • Place of Presentation
      三重大学
    • Year and Date
      2006-12-07
  • [Presentation] On generalized Brjuno functions associated to α-continued fractions2006

    • Author(s)
      夏井利恵
    • Organizer
      エルゴード理論の展望
    • Place of Presentation
      三重大学
    • Year and Date
      2006-12-05

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Published: 2010-06-10   Modified: 2016-04-21  

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