| Date |
Contents |
April 24 2006,
16:30-17:30 |
Hiroki Sasaki
(Shinshu University)
TBA
Abstract: TBA |
April 24 2006,
17:30-18:00 |
Takaomi Kawano
(Ehime University)
The structure of Hochschild cohomology rings of dehedral 2-groups.
Abstract: TBA |
October 17 2006,
15:00-16:00 |
Masamichi Takas
(Department of Mathematical Sciences, Shinshu University)
Spinning, Budney's map and Haefliger knots
Abstract: Using spinning we analyze in a geometric way
Haefliger's smoothly knotted (4k-1)-spheres in the 6k-sphere.
|
October 17 2006,
16:10-17:10 |
Ryo Takahashi
(Department of Mathematical Sciences, Shinshu University)
Cohen-Macaulay local rings of finite representation type and their generalization
Abstract: Cohen-Macaulay local rings of finite representation type, that is, Cohen-Macaulay local rings over which there exist only finitely many isomorphism classes of indecomposable Cohen-Macaulay modules, have deeply been studied for about 30 years, and Gorenstein local rings of finite representation type have already been classified completely under a few assumptions. On the other hand, totally reflexive modules, which are recently studied by many algebraists, are a generalization of Cohen-Macaulay modules over a Gorenstein local ring. In this lecture, I will talk about local rings over which there exist only finitely many indecomposable totally reflexive modules.
|
October 24 2006,
15:00-16:00 |
Miguel Ferrero
(Universidade Federal do Rio Grande do Sul)
Partial actions of groups on algebras and partial Galois extensions
Abstract: In this lecture we will introduce the notion of partial actions and give some basic results on the subject. Next we will consider partial Galois extensions. |
November 14 2006,
15:00-16:00 |
Masahiro Hachimori
(University of Tsukuba, Graduate School of Systems and Information Engineering)
Combinatorial properties of triangulations of the 3-sphere and their relations to knots
Abstract: |
November 28 2006,
15:00-16:00 |
Naoyasu Kita
(Faculty of Education and Culture Graduate School of Education Miyazaki University)
T.B.A.
Abstract: T.B.A. |
December 5 2006,
13:15-14:15 |
Higuchi Yusuke
(Showa University)
Spectral structure of the Laplacian on a covering graph
Abstract: T.B.A |
December 19 2006,
16:00-17:00 |
Brian Forbes
(RIMS, Kyoto University)
Introduction to mirror symmetry and string duality
Abstract: We discuss some applications of string theory dualities to mathematics. The two main examples are mirror symmetry and conifold transitions. |
January 16 2007,
15:00-16:00 |
Shigeyuki Komura
(Tokyo Metropolitan University)
TBA
Abstract: This talk has been canceled. |
January 16 2007,
16:05-17:05 |
Hideki Tanaka
(Okayama University)
TBA
Abstract: TBA |
February 16 2007,
14:30-15:50 |
Noritaka Endo
(Kanazawa University)
TBA
Abstract: TBA |
February 16 2007,
16:00-17:00 |
Tetsuro Miyakawa
(Kanazawa University)
Symmetric solutions of 2-dimensional Navier-Stokes equations
Abstract: TBA |
February 19 2007,
15:00-16:00 |
Tokuji Araya
(Nara University of Education)
On module categories and Auslander-Reiten quivers
Abstract: In representation theory of finite dimensional algebras, the notion of an Auslander-Reiten quiver is very important to investigate the categories of modules. It has also been introduced to the categories of maximal Cohen-Macaulay modules over Cohen-Macaulay rings. In this lecture, I will talk about the relation of the Auslander-Reiten quivers and the categories of modules. |
February 19 2007,
16:05-17:05 |
Akira Ishii
(Hiroshima University)
TBA
Abstract: TBA |
