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Nagano Koichi

Faculty of Pure and Applied Sciences
Official title
Assistant Professor
Research fields
Research projects
曲率が上に有界なホモロジー多様体に対する幾何学的トポロジーの展開2014 -- 2017永野 幸一Japan Society for the Promotion of Science/挑戦的萌芽研究1,950,000Yen
Geometric topology of spaces with an upper curvature bound2009-04 -- 2012-03/Grant-in-Aid for Scientific Research
Study of Topological Structure of Metric Spaces of Non-Positive Curvature2006-04 -- 2009-03/Grant-in-Aid for Scientific Research
非正曲率距離空間の位相構造の研究                        2006 -- 2008Japan Society of for the Promotion of Science/若手研究(B)2,530,000Yen
Career history
2007-02 -- (current)University of Tsukuba Institute of Mathematics Assistant Professor
2001-04 -- 2007-01Tohoku University Mathematical Institute Research Associate
2004-04 -- 2006-032004 JSPS Postdoctoral Fellow for Research Abroad
2000-01 -- 2001-032000 JSPS Doctoral Fellow (DC2)
Academic societies
-- (current)日本数学会
  • Geodesically complete spaces with an upper curvature bound
    Lytchak Alexander; Nagano Koichi
    Geometric and Functional Analysis/29(1)/pp.295-342, 2019
  • Free construction of CAT(1) spaces
    Nagano Koichi
    Archiv der Mathematik/88/p.173--180, 2007-01
  • Fixed point sets of parabolic isometries of CAT(0)-spaces
    Fujiwara Koji; Nagano Koichi; Shioya Takashi
    Commentarii Mathematici Helvetici/81/p.305--335, 2006-01
  • The asymptotic cones of manifolds of roughly non-negative radial curvature
    Mashiko Yukihiro; Nagano Koichi; Otsuka Kazuo
    Journal of the Mathematical Society of Japan/57/p.55--68, 2005-01
  • A sphere theorem for 2-dimensional CAT(1)-spaces
    Nagano Koichi
    Pacific Journal of Mathematics/206/p.401--423, 2002-01
  • A volume convergence theorem for Alexandrov spaces with curvature bounded above
    Nagano Koichi
    Mathematisches Zeitschrift/241/p.127--163, 2002-01
  • Asymptotic rigidity of Hadamard 2-spaces
    Nagano Koichi
    Journal of the Mathematical Society of Japan/52/p.699--723, 2000-01
  • On Geometry of Spaces with Curvature Bounded Above
2018-10 -- 2019-02Differential Geometry IIBUniversity of Tsukuba.
2018-10 -- 2019-02Mathematics in Foreign Language IUniversity of Tsukuba.
2018-10 -- 2019-02Linear Algebra IIUniversity of Tsukuba.
2018-04 -- 2018-08Differential Geometry IAUniversity of Tsukuba.
2018-04 -- 2018-08Problems for Students in Vector Analysis and GeometryUniversity of Tsukuba.
2018-04 -- 2018-08Mathematics in Foreign Language IUniversity of Tsukuba.
2018-10 -- 2019-02Seminar on GeometryUniversity of Tsukuba.
2018-10 -- 2019-02Research in Geometry IAUniversity of Tsukuba.
2018-10 -- 2019-02Research in Geometry IBUniversity of Tsukuba.
2018-10 -- 2019-02Research in Geometry IIAUniversity of Tsukuba.

(Last updated: 2019-04-19)