KOYAMA Akira 小山晃

… Alternative Names

小山晃コヤマアキラ

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Researcher Number	40116158
Other IDs
External Links
Affiliation (Current)	2025: 早稲田大学, 理工学術院, 名誉教授
Affiliation (based on the past Project Information) *help	2022 – 2023: 早稲田大学, 理工学術院, 名誉教授 2011 – 2021: 早稲田大学, 理工学術院, 教授 2012: 早稲田大, 理工学術院, 教授 2006 – 2010: Shizuoka University, Graduate School of Science and Technology, Professor, 創造科学技術大学院, 教授 2008: 静岡大学, 創造科学技術大学院・研究部, 教授 … More 2007: 静岡大学, 創造科学技術大学院研究部, 教授 2004 – 2006: 静岡大学, 理学部, 教授 1995 – 2003: 大阪教育大学, 教育学部, 教授 2002: 大阪教育大学, 数学, 教授 1991 – 1994: 大阪教育大学, 教育学部, 助教授 Less
Review Section/Research Field	Principal Investigator Geometry / Geometry / Science education Except Principal Investigator Geometry / Geometry / Basic analysis / Basic analysis / Algebra / General mathematics (including Probability theory/Statistical mathematics) / 代数学・幾何学
Keywords	Principal Investigator 幾何学的トポロジー / コホモロジー次元 / 次元 / coarse幾何学 / 幾何学 / コホモロジー次元論 / 埋蔵 / 埋め込み / coarse幾何 / asymptotic次元 … More / 位相幾何学 / 次元論 / Coarse幾何学 / トポロジー / 局所単連結 / ホモロジー論 / 局所連結性 / シェイプ理論 / 力学系 / ANR理論 / 群作用 / asymptotic dimension / coares幾何学 / 漸近次元 / Symmetric Products / Embeddings / Cohomological dimension / Geometric Topology / 無限次元コンパクト距離空間 / 無限次元多様体 / 帰納的次元 / Exoticホモロジー多様体 / 位相多様体 / 積空間 / コホモロジー群 / 対称積 / ideal boundary / Coxeter groups / cohomological dimension / dimension / topological spaces / CAT(O)空間 / コホモロジ一次元 / 理想境界 / Coxeter群 / 位相空間 / 国際情報交換（ポーランド） / 国際研究者交流（ポーランド） / 国際研究者交流 / 国際情報研究 / 国際情報交換 / 埋蔵問題 / asymptotic次元論 / Coarse幾何 / 位相幾何 / かたちの数理科目 / 野生的空間 / 大学院教育 / かたちの数理科学 / 自由位相群 / 自由可換位相群 / コホモロジ-次元 / 胞体分割 / 多様体 … More Except Principal Investigator 幾何学 / トポロジー / Riemann多様体 / Domain / Manifolds / Formal balls / Transfinite dimension / Metric spaces / Topological dimension / Topology / ideal boundary / Riemannian manifold / Busemann関数 / 理想境界 / Alexandrov空間 / コンパクト化 / Higsonコンパクト化 / 幾何学的群論 / 写像によるカラーリング / asymptotic次元 / 距離に依存するコンパクト化 / 位相幾何 / 微分同相群 / 同相群 / 中心極限定理 / uniformization of a Riemann surface / Jorgensen's inequality / Schottky space / Kleinian group / Schottky group / classical Schottky group / Jorgensen number / Jorgensen group / 3次元双曲多様体 / 三角群 / リーマン面の一意化 / ヨルゲンセンの不等式 / ショットキイ空間 / クライン群 / ショットキイ群 / 古典的ショットキイ群 / ヨルゲンセン数 / ヨルゲンセン群 / Compactness degree / Cohomological diemnsion / Cohomoloical dimension / Formal ball / Locally compact / Metric space / Continuous domain / Topological spaces / Dimension / compactness degree / Cohomological dimension / Liouville manifold / Liouville多様体 / Gauge Theory / Sinqularity Theory / Three Dimensional Manifolds / General Topology / Mapping Class Groups / Foliations / Algebraic Topology / ゲージ理論 / 特異点理論 / 3次元多様体論 / 一般位相 / 写像類群 / 葉層構造論 / 位相幾何学 / 代数的トポロジー / image processing / wavelet analysis / time frequency analysis / filter / multiwavelet / microlocal analysis / 微分方程式ソルバー / 佐藤の超関数 / 古典的ハーディ空間 / 正規直交ウェーブレット / Matlab / ウェーブレット / Wavelet / 画像処理 / ウェーブレット解析 / 時間周波数解析 / フィルタ / マルチウェーブレット / 超局所解析 / cut locus / Busemann function / Alexandrov space / 調和写像 / 最小跡 / Coarse幾何学 / Coarse幾何 / CAT(O)空間 / CE同値性 / メンガ－普遍空間 / CAT(0)空間 / Shape理論 / 連続体 / Coarse 幾何学 / コクセター群 / Whitney位相 / 一様位相 / 一様同相写像 / 無限次元多様体 / 写像によるcoloring / Higson / Smirnov / aymptotic次元 / CAT(0) / Smirnovコンパクト化 / End charge準同型 / 測度保存同相写像 / 非コンパクト多様体 / 測度保存変換 / Ricci曲率 / 体積 / factor / acyclic resolution / Association Schewe / インシデンス幾何 / 無限遠点 / 極 / 曲率 / 測地線 / 弧長空間 / 擬似乱数 / エルゴード定理 / 重複対数の法則 / 時系列解析 / 定常線形過程 / マルチンゲール / 定常過程 / 位相群 / free Abelian / k-space / 距離空間 / パラコンパクト Less

Dimension theory and coarse geometry from the view point of embedding problemsPrincipal Investigator
- Principal Investigator
  
  Koyama Akira
- Project Period (FY)
  2016 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Waseda University
Embedding problems related to asymptotic dimension in coarse geometryPrincipal Investigator
- Principal Investigator
  
  Koyama Akira
- Project Period (FY)
  2012 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Waseda University
Study of groups of measure-preserving homeomorphisms and volume-preserving diffeomorphisms of noncompact manifolds
- Principal Investigator
  
  YAGASAKI Tatsuhiko
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Kyoto Institute of Technology
Coarse analyzing metric spaces of non-positive curvature and topological analyzing remainders of its compactifications
- Principal Investigator
  
  CHINEN NAOTSUGU
- Project Period (FY)
  2010 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群)
  Hiroshima Institute of Technology
Cohomological dimension theory in coarse geometryPrincipal Investigator
- Principal Investigator
  
  KOYAMA Akira
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Waseda University
  Shizuoka University
Study of various groups of homeomorphisms of noncompact manifolds
- Principal Investigator
  
  YAGASAKI Tatsuhiko
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Kyoto Institute of Technology
Coarse geometry and compactifications that are metric-dependent, with relation to Novikov conjecture
- Principal Investigator
  
  CHINEN Naotsugu
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Okinawa National College of Technology
新領域科目「かたちの数理科学」と博士課程後期における数理科学教育Principal Investigator
- Principal Investigator
  
  小山晃
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Science education
- Research Institution
  Shizuoka University
Construction of exotic homology manifolds and generalization of Quinn indexPrincipal Investigator
- Principal Investigator
  
  KOYAMA Akira
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shizuoka University
Dimension, metrics and computability in metric spaces
- Principal Investigator
  
  HATTORI Yasunao
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Shimane University
Research on Jorgensen groups and classical Schottky groups
- Principal Investigator
  
  SATO Hiroki
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Shizuoka University
Research on cohomological dimension of topological spaces and one of Coxeter groupsPrincipal Investigator
- Principal Investigator
  
  KOYAMA Akira
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Osaka Kyoiku University
Various Aspects of Topology
- Principal Investigator
  
  TSUBOI Takashi
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Geometry
- Research Institution
  The University of Tokyo
Geometry of Points at Infinity
- Principal Investigator
  
  SUGAHARA Kunio
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Osaka Kyoiku University
Microlocal filtering with multiwavelets
- Principal Investigator
  
  ASHINO Ryuichi
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Osaka Kyoiku University
Compactifications of Riemannian manifolds and points at infinity
- Principal Investigator
  
  SUGAHARA Kunio
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Osaka Kyoiku University
微分可能多様体上のRiemann計量と距離構造
- Principal Investigator
  
  菅原邦雄
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Osaka Kyoiku University
階数3のインシデンス幾何
- Principal Investigator
  
  吉荒聡
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Osaka Kyoiku University
弧長空間とその上の測地線
- Principal Investigator
  
  菅原邦雄
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Osaka Kyoiku University
定常過程の極限定理とそれらの統計学への応用
- Principal Investigator
  
  横山良三
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Osaka Kyoiku University
距離空間,及びそれに関連する諸分野について
- Principal Investigator
  
  安井義和
- Project Period (FY)
  1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Osaka Kyoiku University
多様体の胞体分割とコホモロジ-次元Principal Investigator
- Principal Investigator
  
  小山晃
- Project Period (FY)
  1991
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Institution
  Osaka Kyoiku University

[Book] 位相空間論2021
- Author(s)
  小山晃
- Total Pages
  288
- Publisher
  森北出版
- ISBN
  9784627078611
- Data Source
  KAKENHI-PROJECT-16K05160
[Book] Topics in dimension theory, Recent progress in general topology. III2014
- Author(s)
  J. Dydak and A. Koyama
- Total Pages
  39
- Publisher
  Atlantis Press
- Data Source
  KAKENHI-PROJECT-24540099
[Book] Topoic in Dimension Theory in "Recent Progress in Topology III"2014
- Author(s)
  J.Dydak and A. Koyama
- Total Pages
  39
- Publisher
  Atlantis Press
- Data Source
  KAKENHI-PROJECT-24540099
[Book] Topoic in Dimension Theory in "Recent Progress in Topology"2013
- Author(s)
  J. Dydak and A. Koyama
- Total Pages
  39
- Publisher
  Springer-Verlag
- Data Source
  KAKENHI-PROJECT-24540099
[Journal Article] On homologically locally connected spaces2019
- Author(s)
  Akira Koyama and Vesko Valov
- Journal Title
  
  Topology and its Applications
  
  Volume: 260
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05160
[Journal Article] On homologically locally connected spaces2018
- Author(s)
  Akira Koyama and Vesko Valov
- Journal Title
  
  Topology and its Applications
  
  Volume: 印刷中
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05160
[Journal Article] Surfaces in products of two curves2015
- Author(s)
  A. Koyama, J. Krasinkiewicz and S. Spiez
- Journal Title
  
  Topology and its Applications
  
  Volume: 196
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24540099
[Journal Article] Embeddings into products and symmetric products—an algebraic approach2012
- Author(s)
  Akira Koyama、Józef Krasinkiewicz、Stanisław Spież
- Journal Title
  
  Houston Journal of Mathematics
  
  Volume: 38, no.2 Pages: 611-641
- URL
  http://math.uh.edu/~hjm/Vol38-2.html
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22540105
[Journal Article] Embeddings into products and symmetric products - an algebraic approach2012
- Author(s)
  A. Koyama, J. Krasinkiewicz and S. Spiez
- Journal Title
  
  Houston Journal of Mathematics
  
  Volume: 38 Pages: 611-641
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24540099
[Journal Article] Generalized manifolds in products of curves2011
- Author(s)
  Akira Koyama, Jozef Krasinkiewicz, Stanislaw Spiez
- Journal Title
  
  Transactions of American Mathematical Society
  
  Volume: 363 Issue: 3 Pages: 1509-1532
- DOI
  10.1090/s0002-9947-2010-05157-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075, KAKENHI-PROJECT-22540105
[Journal Article] Generalized manifolds in products of curves2011
- Author(s)
  A. Koyama, J. Krasinkiewicz and S. Spiez
- Journal Title
  
  Trans. Amer. Math. Soc.
  
  Volume: 363, no.3 Pages: 1509-1532
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] On the symmetric hyperspace of the circle2010
- Author(s)
  N. Chinen and A. Koyama
- Journal Title
  
  Topology and its Appl
  
  Volume: 157, no.17 Pages: 2613-2621
- NAID
  120002599175
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] Continuous linear extension of functions2010
- Author(s)
  A.Koyama, I.Stasyuk, E.D.Tymchatyn, A.Zagorodnyuk
- Journal Title
  
  Proceedings of American Mathematical Society
  
  Volume: 138 Pages: 4149-4155
- NAID
  120002662002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] Coarse幾何学とShape理論2010
- Author(s)
  Akira Koyama
- Journal Title
  
  数理解析研究所講究録 1681
  
  Pages: 42-48
- Data Source
  KAKENHI-PROJECT-19540108
[Journal Article] On the symmetric hyperspaces of the circle2010
- Author(s)
  N.Chinen, A.Koyama
- Journal Title
  
  Topology and its Applications
  
  Volume: 157 Pages: 2613-2621
- NAID
  120002599175
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] Continuous linear extension of functions2010
- Author(s)
  A. Koyama, I. Stasyuk, E. D. Tymchatyn and A. Zagorodnyuk
- Journal Title
  
  Proc. Amer. Math. Soc
  
  Volume: 138, no.11 Pages: 4149-4155
- NAID
  120002662002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] CO-coarse geometry of complements of Z-sets in the Hilbert cube2008
- Author(s)
  E. Cuchillo-Ibbanez, T. Dvdak, A. Koyama, M. A. Moron
- Journal Title
  
  Trans. Amer. Math. Soc. 360(10)
  
  Pages: 5229-5246
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19650224
[Journal Article] C^0-coarse geometry ofcomplements of Z-sets in the Hilbert cube2008
- Author(s)
  Cuchillo-Ibanez, E. ; Dydak, J. ; Koyama, A. ; Moron, M. A
- Journal Title
  
  Trans.Amer.Math.Soc 360
  
  Pages: 5229-5246
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540078
[Journal Article] C0-coarse geometry of complements of Z-sets in the Hilbert cube2008
- Author(s)
  E. Cuchillo-Ibanez、Jerzy Dydak、Akira Koyama、M.A. Moron
- Journal Title
  
  Transactions of the American Mathematical Society 360
  
  Pages: 5229-5246
- NAID
  120001788213
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540108
[Journal Article] Strong cohomological dimension2008
- Author(s)
  J. Dydak, A. Koyama
- Journal Title
  
  Bulletin of Polish Academy of Sciences 56(2)
  
  Pages: 183-189
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19650224
[Journal Article] Recent Development of Cohomological Dimension Theory : Existence and Applications of Edwards-Walsh Resolutions2004
- Author(s)
  Akira KOYAMA(小山晃)
- Journal Title
  
  Sugaku Expositions 17・2
  
  Pages: 125-150
- Data Source
  KAKENHI-PROJECT-16540064
[Journal Article] Recent development of cohomological dimension theory - Existence and applications of Edwards-Walsh resolutions2004
- Author(s)
  Koyama, Akira
- Journal Title
  
  Sugaku Expositions, Amer. Math. Soc. 17(2)
  
  Pages: 125-150
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540064
[Journal Article] Recent development of cohomological dimension theory : Existence and applications of Edwards-Walsh resolutions2004
- Author(s)
  A.Koyama
- Journal Title
  
  Sugaku Expositions 17
  
  Pages: 125-150
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540066
[Journal Article] Recent Development of Cohomological Dimension Theory : Existence and Applications of Edwards-Walsh resolutions2004
- Author(s)
  A.Koyama
- Journal Title
  
  Sugaku Expositions 17
  
  Pages: 125-150
- Data Source
  KAKENHI-PROJECT-16540066
[Journal Article] Recent development of cohomological dimension theory, Existence and applicaion of Edwards-Walsh resolutions2004
- Author(s)
  A.Koyama
- Journal Title
  
  Sugaku Expositions 17.2
  
  Pages: 1-26
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540147
[Journal Article] Recent development of cohomological dimension theory Existence and applicaion of Edwards-Walsh resolutions2004
- Author(s)
  Akira Koyama
- Journal Title
  
  Sugaku Expositions 17・2
  
  Pages: 26-26
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540147
[Journal Article] Recent development of cohomological dimension theory-Existence and applications of Edwards-Walsh resolutions2004
- Author(s)
  Koyama, Akira
- Journal Title
  
  Sugaku Expositions, Amer. Math. Soc. 17.2
  
  Pages: 125-150
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540064
[Journal Article] On the symmetric hyperspace of the circle
- Author(s)
  Naotsugu Chinen、Akira Koyama
- Journal Title
  
  Topology and its Applications (掲載予定)
- NAID
  120002599175
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540108
[Journal Article] On embeddings into products of curves-An algebraic approach
- Author(s)
  A. Koyama, J. Krasinkiewicz and S. Spiez
- Journal Title
  
  Houston J. Math
  
  Volume: (in press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] Strong cohomological dimension
- Author(s)
  J.Dydak and A.Koyama
- Journal Title
  
  Bulletin of Polish Academy of Sciences (In press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19650224
[Journal Article] C0-coarse geometry of complements of Z-sets in the Hilbert cube
- Author(s)
  E.Cuchillo-Ibbanez, J.Dydak, A.Koyama and M.A.Moron
- Journal Title
  
  Trans.Amer.Math.Soc. (In press)
- NAID
  120001788213
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19650224
[Journal Article] Generalized manifolds in products of curves
- Author(s)
  A.Koyama, J.Krasinkiewicz, S.Spiez
- Journal Title
  
  Transactions of American Mathematical Society
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Journal Article] On the symmetric hyperspace of the circle
- Author(s)
  N.Chinen, A.Koyama
- Journal Title
  
  Topology and its Applications
- NAID
  120002599175
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Homological properties of decomposition spaces2019
- Author(s)
  小山　晃
- Organizer
  Building-up Differentiable Homotopy Theory
- Data Source
  KAKENHI-PROJECT-16K05160
[Presentation] Algebraic ANR revised2019
- Author(s)
  Akira Koyama
- Organizer
  Conference on Geometric Topology and Related Topics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05160
[Presentation] Algebraic ANR and related topics2019
- Author(s)
  Akira Koyama
- Organizer
  Geometric Topology - Celebrating the Year of Mathematics in Poland
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05160
[Presentation] Homological properties of decomposition spaces2017
- Author(s)
  Akira Koyama
- Organizer
  The 2nd Pan Pacific International Conference on Topology and Applications, Pusan, Korea
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05160
[Presentation] Homological properties of decomposition spaces2017
- Author(s)
  Akira Koyama
- Organizer
  Geometric Topology and Geometry of Banach Spaces, Eilat, Israel
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K05160
[Presentation] Characterization of n-dimensional compacta in the product of n curves2015
- Author(s)
  A. Koyama
- Organizer
  DubrovnikVIII - Geometric Topology, Geometric Group Theory and Dynamical Systems
- Place of Presentation
  Inter-University Center, Dubrovnik, Croatia
- Year and Date
  2015-06-22
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24540099
[Presentation] A role of Whyburn Factorization Theorem in Dimension Theory2015
- Author(s)
  A. Koyama
- Organizer
  The 1st Pan Pacific International Conference on Topology and its Applications
- Place of Presentation
  Minnan Normal University, Zhang Zhou, China
- Year and Date
  2015-11-26
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24540099
[Presentation] On embeddings into products of curves2013
- Author(s)
  Koyama, Akira
- Organizer
  28th Summer Conference on Topology and its Applications
- Place of Presentation
  Nipissing University (Ontario, Canada)
- Invited
- Data Source
  KAKENHI-PROJECT-24540099
[Presentation] Surfaces in products of two curves2013
- Author(s)
  Koyama, Akira
- Organizer
  International Conference on Topology and Geometry 2013
- Place of Presentation
  Shimane University
- Data Source
  KAKENHI-PROJECT-24540099
[Presentation] On embeddings into products of curves2013
- Author(s)
  Akira Koyama
- Organizer
  8th Summer Conference on Topology and its Applications
- Place of Presentation
  Nipissing University、NorthBay、Canada
- Year and Date
  2013-07-25
- Data Source
  KAKENHI-PROJECT-22540105
[Presentation] A role of Whyburn factorization theorem for embeddings of n-dimensional contiuna into products of n curves2011
- Author(s)
  Akira Koyama
- Organizer
  Geometric Topology Conference in honor of Evgeny Shchepin on the ocasion of his 60th birthday
- Place of Presentation
  オアハカ(メキシコ)(招待講演)
- Year and Date
  2011-10-16
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Homotopy Type of Symmetric Products of Graphs-Topics from Embedding Theroems2011
- Author(s)
  Akira Koyama
- Organizer
  Dubrovnik VII-Geometric Topology
- Place of Presentation
  ドブロブニク(クロアチア)(招待講演)
- Year and Date
  2011-06-28
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Note on acyclic resolutions and cohomological dimension2011
- Author(s)
  Koyama Akira
- Organizer
  Israeli-Polish Mathematical Meeting
- Place of Presentation
  University of Lodz, Poland
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] A role of Whyburn factorization theorem for embeddings of n-dimensional continua into products of n curves2011
- Author(s)
  Koyama Akira
- Organizer
  Geometric Topology Conference in honor of Evgeny Shchepin on the ocasion of his 60th birthday
- Place of Presentation
  UNAM-Oaxaca, Mexico
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Note on acyclic resolutions and cohomological dimension2011
- Author(s)
  Akira Koyama
- Organizer
  Israeli-Polish Mathematical Meeting
- Place of Presentation
  ウッジ(ポーランド)(招待講演)
- Year and Date
  2011-09-14
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Surfaces in products of two curves2011
- Author(s)
  小山晃
- Organizer
  2011年度General Topology Symposium
- Place of Presentation
  埼玉大学
- Year and Date
  2011-12-20
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Homotopy Type of Symmetric Products of Graphs-Topics from Embedding Theorems2011
- Author(s)
  Koyama Akira
- Organizer
  Dubrovnik VII-Geometric Topology
- Place of Presentation
  Inter University, Dubrovnik, Croatia
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Surfaces in products of two curves2011
- Author(s)
  小山晃
- Organizer
  2011年度General Topology Symposium
- Place of Presentation
  埼玉大学(埼玉県)
- Year and Date
  2011-12-20
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] On symmetric products of graphs-related to embedding theorems2010
- Author(s)
  Koyama, Akira
- Organizer
  General Topology Symposium
- Place of Presentation
  筑波大学(つくば市)
- Year and Date
  2010-12-20
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Embeddings of n-dimen-sional compacta into products of curves2010
- Author(s)
  Koyama Akira
- Organizer
  International Conference Japan-Mexico on Topology and its Applications
- Place of Presentation
  University of Colima, Mexico
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] On symmetric products of graphs and embedding theorems2010
- Author(s)
  小山晃
- Organizer
  2010年度General Topology Symposium
- Place of Presentation
  筑波大学
- Year and Date
  2010-12-18
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Embedding Theorems of n-dimensional compacts into the products of curves2010
- Author(s)
  Koyama, Akira
- Organizer
  The 5^<th> Japan-Mexico joint conference of topology and its applications
- Place of Presentation
  University of Colima, Colima, Mexii.
- Year and Date
  2010-09-30
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] n次元一般多様体の埋蔵について2009
- Author(s)
  小山晃
- Organizer
  2009年度General Topology Symposium
- Place of Presentation
  大分大学
- Year and Date
  2009-12-16
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Coarse 幾何学と Shape 理論2009
- Author(s)
  小山晃
- Organizer
  一般位相幾何学および幾何学的トポロジーに関する研究
- Place of Presentation
  京都大学
- Year and Date
  2009-10-15
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] Coarse幾何学のshape理論的接近2009
- Author(s)
  小山晃
- Organizer
  研究集会「一般的および幾何学的トポロジーの諸問題」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2009-10-15
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] n次元一般多様対の埋蔵について2009
- Author(s)
  小山晃
- Organizer
  2009年度 General Topology シンポジウム
- Place of Presentation
  大分大学
- Year and Date
  2009-12-16
- Data Source
  KAKENHI-PROJECT-21540075
[Presentation] The symmetric products of the circle2007
- Author(s)
  小山晃
- Organizer
  Dubrovnik VI - Geometric Topology
- Place of Presentation
  Dubrovnik, Croatia
- Year and Date
  2007-10-06
- Data Source
  KAKENHI-PROJECT-19540108
[Presentation] The symmetric products of the circle2007
- Author(s)
  A.Koyama
- Organizer
  Dubrovnik VI-Geometric Topology
- Place of Presentation
  Inter University Center,Dubrovnik,Croatia
- Year and Date
  2007-10-06
- Data Source
  KAKENHI-PROJECT-19650224

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KOYAMA Akira 小山 晃

小山 晃 コヤマ アキラ

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Dimension theory and coarse geometry from the view point of embedding problemsPrincipal Investigator

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Embedding problems related to asymptotic dimension in coarse geometryPrincipal Investigator

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Cohomological dimension theory in coarse geometryPrincipal Investigator

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新領域科目「かたちの数理科学」と博士課程後期における数理科学教育Principal Investigator

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Construction of exotic homology manifolds and generalization of Quinn indexPrincipal Investigator

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Research on cohomological dimension of topological spaces and one of Coxeter groupsPrincipal Investigator

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KOYAMA Akira 小山晃

小山晃コヤマアキラ