SMS scnews item created by Anthony Henderson at Fri 21 Nov 2008 1138
Type: Seminar
Distribution: World
Expiry: 28 Nov 2008
Calendar1: 28 Nov 2008 1205-1255
CalLoc1: Carslaw 159
CalTitle1: Algebra Seminar: Wada -- The representation type of cyclotomic q-Schur algebras
Auth: anthonyh@bari.maths.usyd.edu.au

Algebra Seminar

The representation type of cyclotomic q-Schur algebras

Kentaro Wada

28th November, 12:05-12:55pm, Carslaw 159


Abstract

In this talk, I give a necessary and sufficient condition on parameters for cyclotomic q-Schur algebras to be of finite representation type. In order to prove it, we use some structures of cyclotomic q-Schur algebras obtained in my previous work with T. Shoji. Thanks to these structures, we should consider only special cases to prove infiniteness. On the other hand, in o rder to prove finiteness, we show that each block of cyclotomic q-Schur algebra which satisfies given conditions is Morita equivalent to an algebra which is of finite representation type.


After the seminar we will take the speaker to lunch.

See the Algebra Seminar web page for information about other seminars in the series.

Anthony Henderson anthonyh@maths.usyd.edu.au.



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