[ Department of Mathematics]
[Shinshu University]
Matsumoto, 390-8621
Editor of this web site;
Keiichi Sakai
---ksakai(at)math.shinshu-u.ac.jp
Shinshu Topology Seminar

[ Schedule ] [ Archives ] [ Participants ] [ Algebraic Toplogy: A guide to literature ] [ Japanese ]


Schedule

Thursday 9 May 2019. 16:30--18:00
Title : Complete classification of Lie algebras attached to Clifford modules and an application
Speaker : Kenro Furutani (Tokyo University of Science)
Room : A-427, Faculty of Science, Shinshu University
Abstract : I introduce a class of nilpotent Lie algebras attached to a certain class of Clifford modules (we call them pseudo H-type algebra). These are a kind of generalized class of Heisenberg algebra and I explain existence of lattices, their classification, and a kind of periodicity of their automorphism groups coming from Bott peridicity. As an application I show some results to Kac's problem of isospectral manifolds among their compact quotients with respect to the sub-Laplacians and Laplacians.
I will talk in the following way:
  • (1) Introduction
  • (2) Lie algebras attached to Clifford modules
  • (3) Classification I
  • (4) Classification II and some results on automorphism groups
  • (5) Non-diffeomorphic isospectral nilmanifolds with respect to "Laplacian" and "sub-Laplacian"

Apr. 2018 -- Mar. 2019

Wednesday 18 Apr 2018. 16:30--18:00
Speaker : Ryuki Kaneta (Hokkaido University)
Room : A-427, Faculty of Science, Shinshu University
Wednesday 23 May 2018. 16:30--18:00
Speaker : Takahiro Matsuyuki (Tokyo Institute of Technology)
Room : A-427, Faculty of Science, Shinshu University
Friday 1 Jun 2018. 16:30--18:00
Title : Solving Partial Assignment Problems using Random Clique Complexes
Speaker : Manohar Kaul (Indian Institute of Technology Hyderabad)
Room : A-427, Faculty of Science, Shinshu University
Wednesday 4 Jul 2018. 16:30--18:00 ** Joint with colloquium in Faculty of Economics and Law **
Speaker : Kohei Tanaka (Shinshu University)
Room : A-427, Faculty of Science, Shinshu University
Friday 24 Aug 2018. 16:30--18:00
Title : Homotopy theory of gauge groups over high dimensional closed manifolds
Speaker : Ruizhi Huang (Chinese Academy of Science)
Room : A-427, Faculty of Science, Shinshu University
Monday 3 Sep 2018. 16:30--18:00
Title : Logarithmic residues and Solomon-Terao formula for subspace arrangements
Speaker : Delphine Pol (Hokkaido University)
Room : A-427, Faculty of Science, Shinshu University
Thursday 15 Nov 2018. 16:30--18:00
Title : Characteristic quasi-polynomials and a connection to Ehrhart theory
Speaker : Tan Nhat Tran (Hokkaido University)
Room : A-427, Faculty of Science, Shinshu University
Wednesday 5 Dec 2018. 16:30--18:00
Title : On the cohomology of the orbit foliation of certain group action on the unit circle bundle of a closed hyperbolic surface
Speaker : Mitsunobu Tsutaya (Kyushu University)
Room : A-427, Faculty of Science, Shinshu University
Friday 7 Dec 2018. 16:30--17:30
Title : Free hyperplane arrangements and gain graphs
Speaker : Michele Torielli (Hokkaido University)
Room : A-427, Faculty of Science, Shinshu University
Friday 7 Dec 2018. 17:40--18:40
Title : Free hyperplane arrangements over arbitrary fields and their computation with CoCoA
Speaker : Elisa Palezzato (Hokkaido University)
Room : A-427, Faculty of Science, Shinshu University
Wednesday 23 Jan 2019. 16:30--18:00
Title : Loop homology algebra of discrete torsion
Speaker : Yasuhiko Asao (The University of Tokyo)
Room : A-427, Faculty of Science, Shinshu University
Friday 15 Feb 2019. 16:30--18:00
Title : Indies of geometric operators on manifolds with fibered boundaries
Speaker : Mayuko Yamashita (The University of Tokyo)
Room : A-427, Faculty of Science, Shinshu University

Archives


Participants of the seminar

Juno Mukai Professor emeritus, Shinshu University
Hideyuki Kachi Professor emeritus, Shinshu University
Kojun Abe Faculty of Science, Shinshu University
Kazuhiko Takano School of General Education, Shinshu University
Katsuhiko Kuribayashi Faculty of Science, Shinshu University
Dai Tamaki Faculty of Science, Shinshu University
Yoshihiro Hirato Nagano National College of Technology
Atsuko Katanaga School of General Education, Shinshu University
Masamichi Takase Faculty of Science and Technology, Seikei University
Kiyonori Gomi Faculty of Science, Shinshu University
Keiichi Sakai Faculty of Science, Shinshu University
Yasuhide Numata Faculty of Science, Shinshu University
Mayuko Kon Faculty of Education, Shinshu University
Takahisa Shiina Academic Support Center, Kogakuin University
Kazunori Noguchi Academic Support Center, Kogakuin University
Kouhei Tanaka Faculty of Economics and Law, Shinshu University
Takahito Naito Liberal Arts and Sciences, Nippon Institute of Technology
Kentaroh Matsuo Faculty of Education for Future Generations, International Pacific University
Ken-ichiro Shinkai Interdisciplinary Graduate School of Science and Technology, Shinshu University
Yasuhiro Momose Interdisciplinary Graduate School of Science and Technology, Shinshu University