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2009 Fiscal Year Final Research Report

Mathematics of quasi-periodic tilings and their applications

Research Project

  • PDF
Project/Area Number 18340023
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 InstitutionKanazawa University

Principal Investigator

ITO Shunji  Kanazawa University, 自然科学研究科, 特任研究員 (30055321)

Co-Investigator(Kenkyū-buntansha) FUJISAKI Hiroshi  金沢大学, 電子情報系, 講師 (80304757)
YASUTOMI Shin'ichi  鈴鹿工業高等専門学校, 教養教育科, 教授 (60230231)
Co-Investigator(Renkei-kenkyūsha) OGAWA Shigeyoshi  立命館大学, 理工学部, 教授 (80101137)
AKIYAMA Shigeki  新潟大学, 自然科学系, 准教授 (60212445)
TAMURA Jun'ichi  津田塾大学, 付置研究所, 研究員 (90418905)
Project Period (FY) 2006 – 2009
Keywords準周期タイリング / Pisot / non-Pisot数 / サブスティテューション / フラクタル / Diophantine近似
Research Abstract

我々は,諸分野にみられる準結晶(準周期タイリング)の生成の仕組みを,n文字のサブスティテューションや,その拡張である自由度nの自由群上のautomorphismを道具として,力学系の視点からとらえようとすることを研究課題とした.これに対して,non-Pisot hyperbolic automorphismを用いて,複素Pisot数系という概念を導入することに成功し,その数系の上で,純周期的展開をもつ数の代数的特徴づけに成功した.また,5次unimodular reducibleサブスティテューションから,リーマン面上の準周期タイリングが生成可能であることを示すことに成功した.

  • Research Products

    (26 results)

All 2010 2009 2008 2007 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (15 results) Remarks (1 results)

  • [Journal Article] Complex pisot numeration systems2009

    • Author(s)
      M. Hama, M. Furukado, S. Ito
    • Journal Title

      Commentarii Mathematici Universitatis Sancti Pauli 58

      Pages: 9-49

    • Peer Reviewed
  • [Journal Article] Negative slope algorithm and multiplicative Rauzy induction of 3-interval exchange transformations2009

    • Author(s)
      K. Nakazawa, K. Ishimura, S. Ito
    • Journal Title

      Hiroshima Mathematical Journal 39

      Pages: 451-468

    • Peer Reviewed
  • [Journal Article] Three interval exchange transformation and its odometer representation2009

    • Author(s)
      Y. Ichikawa, S. Ito
    • Journal Title

      Tokyo J. Math. 32

      Pages: 447-469

    • Peer Reviewed
  • [Journal Article] Purely periodic points of complex Pisot expansions2009

    • Author(s)
      M. Hama, S. Ito
    • Journal Title

      Tokyo J. Math. 32

      Pages: 517-636

    • Peer Reviewed
  • [Journal Article] Geometric realizations of hyperbolic unimodular substitutions2009

    • Author(s)
      M. Furukado, H. Rao, S. Ito
    • Journal Title

      Progress in Probability 61

      Pages: 251-268

    • Peer Reviewed
  • [Journal Article] Beta-Expansions with Negative Basis2009

    • Author(s)
      T. Sadahiro, S. Ito
    • Journal Title

      Integers

      Pages: 239-259

    • Peer Reviewed
  • [Journal Article] Characterization of periodic points of the negative slope algorithm2008

    • Author(s)
      K. Ishimura, S. Ito
    • Journal Title

      Osaka Journal of Mathematics 45

      Pages: 941-963

    • Peer Reviewed
  • [Journal Article] On Substitution Invariant Sturmian Words: An Application of Rauzy Fractals2007

    • Author(s)
      V. Berthe, H. Ei, H. Rao, S. Ito
    • Journal Title

      Theoretical informatics and applications 41

      Pages: 329-349

    • Peer Reviewed
  • [Journal Article] Tilings of a Riemann surface and cubic Pisot numbers2007

    • Author(s)
      F. Enomoto, H. Ei, M. Furukado, S. Ito
    • Journal Title

      Hiroshima Mathematical Journal 37

      Pages: 181-210

    • Peer Reviewed
  • [Journal Article] On simultaneous Diophantine approximation to periodic points related to modified Jacobi-Perron algorithm2007

    • Author(s)
      S. Ito, S. Yasutomi
    • Journal Title

      Advanced Studies in Pure Mathematics 49

      Pages: 171-184

    • Peer Reviewed
  • [Presentation] On substitutions related to the Rauzy induction on 4-interval exchange transformations II2010

    • Author(s)
      伊藤俊次
    • Organizer
      Workshop「数論とエルゴード理論」
    • Place of Presentation
      金沢大学サテライト・プラザ(石川県)
    • Year and Date
      2010-03-07
  • [Presentation] Subsitutions from Rauzy Induction on 4-interval exchange transformations and Quasi-periodic tilings2009

    • Author(s)
      伊藤俊次
    • Organizer
      International Workshop on Dynamics and Fractals
    • Place of Presentation
      Morningside center of Institute of Mathematics, Academy of Science of China, Beijing, P.R. (中国)
    • Year and Date
      2009-12-27
  • [Presentation] Substitutions from Rauzy induction on 4-interval exchange transformations and quasi-periodic tilings2009

    • Author(s)
      伊藤俊次
    • Organizer
      研究集会「エルゴード理論の最近の話題」
    • Place of Presentation
      大学理学部(東京都)
    • Year and Date
      2009-11-09
  • [Presentation] Substitutions from Rauzy Induction on 4-interval exchange transformations and Quasi-periodic tilings2009

    • Author(s)
      伊藤俊次
    • Organizer
      Workshop on substitutions and tilings
    • Place of Presentation
      FRUMAM (Federation de Recherche des Unites de Mathematiques de Marseille)(フランス)
    • Year and Date
      2009-09-17
  • [Presentation] Quasi-periodic tilings from Pisot substitutions2009

    • Author(s)
      伊藤俊次
    • Organizer
      RIMS共同研究「準周期タイルと言語理論の周辺」
    • Place of Presentation
      京都大学数理解析研究所(京都府)
    • Year and Date
      2009-06-09
  • [Presentation] Quasi-periodic tilings from Pisot substitutions2009

    • Author(s)
      伊藤俊次
    • Organizer
      The 5th Asian International Workshop on Quasicrystals (AIWQ5)
    • Place of Presentation
      東京理科大神楽坂キャンパス(東京都)
    • Year and Date
      2009-06-03
  • [Presentation] Complex Pisot Numeration system2009

    • Author(s)
      伊藤俊次
    • Organizer
      Numeration: Mathematics and Computer Science
    • Place of Presentation
      CIRM, Marseille(フランス)
    • Year and Date
      2009-03-24
  • [Presentation] Quasi-periodic tilings from non-Pisot unimodular matrices2009

    • Author(s)
      伊藤俊次
    • Organizer
      Mini-Workshop: The Pisot Conjecture- From Substitution Dynamical Systems to Rauzy Fractals and Meyer Sets
    • Place of Presentation
      Oberwolfach(ドイツ)
    • Year and Date
      2009-03-03
  • [Presentation] "Boundary" dynamical systems2009

    • Author(s)
      伊藤俊次
    • Organizer
      Workshop "Number Theory and Ergodic Theory 2009 January"
    • Place of Presentation
      金沢大学サテライト・プラザ(石川県)
    • Year and Date
      2009-01-31
  • [Presentation] Tilings generated by non-Pisot group automorphisms and Domain exchange transformations2008

    • Author(s)
      伊藤俊次
    • Organizer
      Combinatorial and Computational aspects of Tilings
    • Place of Presentation
      The Mathematics Department of Imperial College London(イギリス)
    • Year and Date
      2008-07-30
  • [Presentation] Complex Pisot numeration systems and self-similar tilings2007

    • Author(s)
      伊藤俊次
    • Organizer
      エルゴード理論とその応用
    • Place of Presentation
      慶應大学日吉キャンパス(神奈川県)
    • Year and Date
      2007-12-19
  • [Presentation] Complex Pisot Numeration Systems2007

    • Author(s)
      伊藤俊次
    • Organizer
      Workshop on Fractal Geometry and Ergodic Theory
    • Place of Presentation
      Morningside Center, Academy of Science, Beijing(中国)
    • Year and Date
      2007-11-04
  • [Presentation] Complex Pisot Numeration Systems2007

    • Author(s)
      伊藤俊次
    • Organizer
      Workshop "Number Theory and Ergodic Theory 2007"
    • Place of Presentation
      金沢大学サテライト・プラザ(石川県)
    • Year and Date
      2007-09-29
  • [Presentation] Tilings by non-Pisot matrices2007

    • Author(s)
      伊藤俊次
    • Organizer
      Generalized substitutions, tilings and numeration
    • Place of Presentation
      Centre IGESA, Porquerolles(フランス)
    • Year and Date
      2007-06-11
  • [Presentation] Complex Pisot Numeration Systems2007

    • Author(s)
      伊藤俊次
    • Organizer
      準周期構造のスペクトル解析と関連する話題
    • Place of Presentation
      京都大学数理解析研究所(京都府)
    • Year and Date
      2007-01-19
  • [Remarks]

    • URL

      http://www.shunjiito.com/

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Published: 2011-06-18   Modified: 2016-04-21  

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