Japan-Korea Joint Seminor
31-Japan Ring theory and Representation Theory Symposium

November 2 (Mon.) -7 (Sat.) 1998

Organizer:
Masahisa Sato (Yamanashi Univ.)
Kenji Nishida (Shinshu Univ.)


Program


Nov. 2

13:00-13:50 Juncheol Han (Kosin University)
                     On clean rings

14:00-14:50 Kiyoichi Oshiro (Yamaguchi University)
                     On QF serial rings

15:10-16:00 Jae Keol Park (Pusan National University)
                    Semi-central idempotents and Triangular Representations

16:10-17:00 Chan Yong Hang (Kyung Hee University)
                    On week π-regularity of rings whose prime ideals are
                    maximal and quasi-Baer rings

Nov.3 

10:00-10:50 Yong Uk Cho (Silla University)
                   A characterization of AGE-rings

11:00-11:50 Chan Huh (Pusan National University)
                    On rings in which every maximal one sided ideal contains
                    a maximal ideal

13:30-14:20 Hideto Asashiba (Osaka City University)
                     From stable equivalences to derived equivalences 
                     for some classes of self-injective algebras

14:30-15:20 Hong Kee Kim (Gyeongsang University)
                    
Some results on the the skew polynomial rings 
                      over a reduced ring

15:40-16:30 Tai Keun Kwak (Daejin University)
                    Minimal prime ideals in 2-primal rings

16:40-17:30 Chol on Kim (Pusan National University)
                    Quasi-duo rings and 2-primal rings

Nov.4 

9:30-10:20 Shinsuke Takashima  (Osaka City University)
                   Representation theory for fundamental groups of Hakenian
                    manifolds

10:30-11:20 Osamu Iyama (Kyoto University)
                    Integral order of tame representation type 
                      with infinite sequences

11:30-12:20 Yasuyuki Hirano (Okayama University)
                   Jones polynomial and some separable Frobenius extension
                   -- The introduction of the work of L. Kadison --

13:40-14:30  Kouzou Sugano (Hokkaido University)
             Kazuhiko Hirata (Chiba University)
                    On semisimple extensions of serial rings

14:40-15:30 Jin Yong Kim (Kyung Hee University)
                   A note on π-regular Baer rings

15:50-16:40 Tadashi Yanai (Niihama Tech. College)
                   Non-commutative Galois theory and Hopf algebra

16:50-17:50 Aiichi Yamasaki  (Kyoto University)
                  Cancellation of lattices and approximation properties of 
                  division algebras

Nov.5

9:30-10:20  Jun Nagase  (Osaka City University)
                   DTr-variant modules over wild algebras

10:30-11:20 Naoko Kunugi (Chiba University)
                   On relative projectivity for finite group algebras  

11:30-12:20 Youko Usami (Ochanomizu University)
                   Principal blocks with extra-special defect groups of 
                   order 27
13:40-14:30  Akira Masuoka (Shimane University)
                   Hopf algebra, Lie bialgebra extension and cohomology

14:40-15:30 Yang Lee (Kyungpook National University)
                   Extensions of 2-primal rings
            

15:50-16:40 Mitsuo Hoshino (Tsukuba University)
                   Modules with finite Gorenstein dimension

16:50-17:50 Fujio Kubo (Kyushu Tech. University)
                   Noncommutative Poisson algebras and the Gerstenhaber's
                   deformation theory

Nov.6

9:00-9:50 Noki Hamaguchi (Okayama University)
                    Differentially simple rings

10:00-15:50 Yousuke Onuki (Tsukuba University)
            Hajime Takeda (Tsukuba University)
                   Hochschild extension ring given by 2-cocycle

11:10-12:00 Mitsuhiro Takeuchi (Tsukuba University)
                    Kuhn theory - algebraic topology and representation theory

12:10-13:00 Nam Kyun Kim (Pusan National University)
                   A note on exchange rings