AKIYAMA Shigeki

Affiliation
Institute of Pure and Applied Sciences
Official title
Professor
URL
Research fields
Algebra
Foundations of mathematics/Applied mathematics
Geometry
Foundations of mathematics/Applied mathematics
Research keywords
Number Theory, Ergodic Theory, Self-similarity, Pisot number, Substitution, Tiling, Quasicrystal, Uniform distribution, Fractal
Research projects
Almost periodic structure and aperiodicity2024-04 -- 2029-03AKIYAMA ShigekiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research(C)4,550,000Yen
Application of substitutive dynamical system to number theory2020-04 -- 2024-03AKIYAMA ShigekiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (C)4,160,000Yen
Self-inducing structure of arithmetic algorithms2017-04 -- 2023-03AKIYAMA ShigekiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (C)4,290,000Yen
Number Theory and Self-inducing structure1998-01 -- (current)/（選択しない）
Aperiodic Order2005-04 -- (current)/
Analytic number theory1989-04 -- 1989-04/
Pisot conjecture on substitutive dynamical systems2012-04 -- 2016-03AKIYAMA ShigekiJapan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (C)5,200,000Yen
Degree
1989-3-31学術博士神戸大学
Academic societies
1989-03 -- (current)日本数学会
-- (current)日本数学会
Articles
Books
  • The Corona Limit of Penrose Tilings Is a Regular Decagon
    Akiyama Shigeki; Imai Katsunobu
    CELLULAR AUTOMATA AND DISCRETE COMPLEX SYSTEMS, AUTOMATA 2016/SPRINGER INT PUBLISHING AG/pp.35-48, 2016
  • On the Pisot Substitution Conjecture
    Akiyama S.; Barge M.; Berthe V.; Lee J. -Y.; Siegel A.
    MATHEMATICS OF APERIODIC ORDER/BIRKHAUSER VERLAG AG/pp.33-72, 2015
  • Numeration and Substitution 2012., RIMS Kôkyûroku Bessatsu
    秋山 茂樹; Valerie Berthe; Hui Rao; Takao Komatsu
    京都大学数理解析研究所, 2014-06
  • Summer School on Uniform Distribution, Papers from the school held in Kyoto, August 23–25, 2010., RIMS Kôkyûroku Bessatsu
    秋山 茂樹
    京都大学数理解析研究所, 2012
Conference, etc.
  • Aperiodic Hats and Turtles
    秋山 茂樹
    タイル張りと準周期性の周辺/2023-10-2--2023-10-4
  • Aperiodicity of Tile Sets
    秋山 茂樹
    One day workshop at Osaka/2023-10-8
  • Aperiodicity of Turtle
    AKIYAMA Shigeki
    Aspects of Aperiodic Order/2023-8-27--2023-9-1
  • Markoff-Lagrange Spectrum and Symbolic Dynamics
    AKIYAMA Shigeki
    Trends in Metric Number Theory/2023-7-26--2023-7-28
  • Markoff-Lagrange spectrum and symbolic dynamics (Mini Course)
    AKIYAMA Shigeki
    2023 NCTS Workshop on Dynamical Systems/2023-6-8--2023-6-10
  • Minimum polyhedron of n vertices
    AKIYAMA Shigeki
    Algebra Seminar/2024-05-30--2024-05-30
  • Coding of irrational rotation and the graph of Sh.Yasutomi
    秋山 茂樹
    Mathematics of quasiperiodic order and related topics/2022-10-07--2022-10-09
  • Multiplicative Lagrange Spectrum and symbolic dynamics
    Akiyama Shigeki
    Number Theory Conference 2022/2022-07-04--2022-07-08
  • Markoff-Lagrange spectrum and symbolic dynamics
    秋山 茂樹
    2021年度 冬の力学系研究集会/2022/1/7--2022/1/10
  • Coding of irrational rotation and the graph of Sh.Yasutomi
    Akiyama Shigeki
    Mathematics of quasiperiodic order and related topics/2021/11/8--2021/11/10
  • Arithmetic progressions in self-similar tilings
    Akiyama Shigeki
    Mathematics of quasiperiodic systems and related topics/2020-11-9--2020-11-11
  • A geometric characterization of pure discrete symbolic dynamics
    秋山 茂樹
    Number Theory and Ergodic Theory/2020-02-10
  • Introduction to Numeration Systems
    Akiyama Shigeki
    CIMPA School:Numeration and Fractals/2020-01-10--2020-01-16
  • Repetition of patterns in self-similar tiling space
    秋山 茂樹
    葉層構造の幾何学とその応用/2019-12-15
  • Spiral Delone sets and related Diophantine problems
    Akiyama Shigeki
    準周期タイリングとその周辺/2019-10-09
  • Spiral Delone set
    Akiyama Shigeki
    Equidistribution: Arithmetic, Computational and Probabilistic Aspects/2019-05-02
  • A criterion for almost periodicity of sequences
    Akiyama Shigeki
    Number Theory and Dynamics/2019-07-17
  • On nearly recursive sequences
    Akiyama Shigeki
    Number Theory and Applications/2017-10-14--2017-10-18
  • On Corona Limits
    秋山 茂樹
    Spectral Structures and Topological Methods in Mathematical Quasicrystals/2017-10-2--2017-10-9
  • Beta expansion and its extension
    秋山 茂樹
    Workshop on substitutions and tiling spaces (Vienna)/2017-9-25--2017-9-29
  • Nearly recursive sequences
    秋山 茂樹
    Number Theory and Dynamics/2017-6-19--2017-6-23
  • Around discretized rotation
    秋山 茂樹
    Numeration 2017 (Rome)/2017-6-5--2017-6-9
  • Beta-expansions and Self-affine Tilings
    Akiyama Shigeki
    Modern Trends in Mathematical Crystallography (Manila)/2017-5-20--2017-5-24
  • Almost periodicity and coincidence of tiling dynamics
    Akiyama Shigeki
    学習院大学スペクトル理論セミナー/2016-11-05--2016-11-05
  • Corona limits of tilings: Periodic case
    Akiyama Shigeki
    Mathematical Physics of Quasi-Periodic Systems and Related Topics/2016-11-07--2016-11-09
  • more...
Teaching
2024-10 -- 2025-02Research in Algebra VAUniversity of Tsukuba.
2024-04 -- 2024-08Research in Algebra IBUniversity of Tsukuba.
2024-04 -- 2024-08Research in Algebra VBUniversity of Tsukuba.
2024-10 -- 2025-02Research in Algebra IAUniversity of Tsukuba.
2024-04 -- 2024-08Seminar on MathematicsUniversity of Tsukuba.
2024-10 -- 2025-02Seminar on MathematicsUniversity of Tsukuba.
2024-04 -- 2024-08Research in Algebra IIIBUniversity of Tsukuba.
2024-10 -- 2025-02Research in Algebra IIAUniversity of Tsukuba.
2024-10 -- 2025-02Research in Algebra IVAUniversity of Tsukuba.
2024-10 -- 2025-02Research in Algebra IIIAUniversity of Tsukuba.
more...
Other educational activities
2023-12 -- (current)令和５年度未来の科学者育成プロジェクト事業・午後のマスカフェ茨城県教育委員会
2016-11 -- (current)高田高校　高高SS講座　高田高校
2016-09 -- 2016-09集中講義「数学特別講義A5」熊本大学
2016-08 -- 2016-09集中講義「数学特別講義III」大阪教育大
2015-11 -- 2015-11集中講義「ベータ変換と不変測度」高知大学
2015-11 -- 2015-11高高（スーパーサイエンス）講座「切ったり張ったり」高田高校
2016-01 -- 2016-01津山高専数学談話会「ピゾ数とその応用」津山高専
2014-11 -- 2014-11上越教育大談話会「離散回転の軌道」上越教育大
2014-11 -- 2014-11中高生のための高高ｽｰﾊﾟｰｻｲｴﾝｽ講座「実験から法則へ」高田高校
2014-07 -- 2014-07集中講義「数論的力学系の自然拡大」新潟大学
more...
Professional activities
-- (current)日本数学会代数学分科会運営委員
University Management
2022-04 -- 2023-03共通科目部会委員長
2019-04 -- 2020-03数理物質系系長補佐
2020-04 -- 2021-03理工学群副学群長
2017-04 -- 2018-03数学類長
2019-04 -- 2020-03数学域長・専攻長
Other activities
-- (current)See also http://math.tsukuba.ac.jp/~akiyama/index.html

(Last updated: 2024-12-02)