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J-GLOBAL ID:200901002434866643   Update date: Oct. 02, 2020

Koyama Akira

コヤマ アキラ | Koyama Akira
Affiliation and department:
Job title: Professor
Research field  (1): Geometry
Research keywords  (1): Geometric Topology, Dimension Theory, Continuum Theory
Research theme for competitive and other funds  (23):
  • 2016 - 2021 次元論および距離空間の埋蔵問題から考察するcoarse幾何学の研究
  • 2016 - 2020 次元論および距離空間の埋蔵問題から考察するcoarse幾何学の研究
  • 2012 - 2016 Embedding problems related to asymptotic dimension in coarse geometry
  • 2010 - 2014 Coarse analyzing metric spaces of non-positive curvature and topological analyzing remainders of its compactifications
  • 2010 - 2013 Study of groups of measure-preserving homeomorphisms and volume-preserving diffeomorphisms of noncompact manifolds
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Papers (15):
  • A. Koyama, J. Krasinkiwicz, S. Spiez. Surfaces in products of two curves. Topology Appl. 2015. 169. 618-640
  • Akira Koyama, Jozef Krasinkiewicz, Stanislaw Spiez. EMBEDDINGS INTO PRODUCTS AND SYMMETRIC PRODUCTS - AN ALGEBRAIC APPROACH. HOUSTON JOURNAL OF MATHEMATICS. 2012. 38. 2. 611-641
  • A. Koyama, J. Krasinkiewicz, S. Spiez. Generalized manifolds in products of curves. Trans. Amer. Math. Soc. 2011. 363. 3. 1509-1523
  • A. Koyama, I. Stasyuk, E. D. Tymchatyn, A. Zagorodnyuk. CONTINUOUS LINEAR EXTENSION OF FUNCTIONS. PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY. 2010. 138. 11. 4149-4155
  • Naotsugu Chinen, Akira Koyama. On the symmetric hyperspace of the circle. TOPOLOGY AND ITS APPLICATIONS. 2010. 157. 17. 2613-2621
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Books (1):
  • Topics in Dimension Theory - Recent Progress in General Topology III
    Atlantis Press 2014 ISBN:9789462390232
Lectures and oral presentations  (4):
  • Homological properties of decomposition spaces
    (Geometric Topology and Geometry of Banach Spaces 2017)
  • Characterizations of n-dimensional compacta in the products of n curves
    (Dubrovnik VIII - Geometric Topology, Geometric Group Theory and Dynamical Systems 2015)
  • On embeddings into products of curves - An algebraic approach
    (28th Summer Conference on Topology and its Applications 2013)
  • A role of Whyburn factorization theorem for embeddings of n-dimensional continua into products of n curves
    (2011)
Education (2):
  • - 1977 Tokyo University of Educatiion
  • Tokyo University of Education Department of Mathematics
Professional career (1):
  • Docter of Science
Association Membership(s) (2):
American Mathematical Society ,  The Mathematical Society of Japan
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