On Smash Products of Transitive Module Algebras

Citation:

Caihong WANG,Shenglin ZHU.On Smash Products of Transitive Module Algebras[J].Chinese Annals of Mathematics B,2010,31(4):541~554
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Authors:

Caihong WANG; Shenglin ZHU;

Foundation:

the National Natural Science Foundation of China (No. 10731070).
Abstract: Let H be a semisimple Hopf algebra over a field of characteristic 0, and A a finite-dimensional transitive H-module algebra with a 1-dimensional ideal. It is proved that the smash product A#H is isomorphic to a full matrix algebra over some right coideal subalgebra N of H. The correspondence between A and such N and the special case A = k(X) of function algebra on a finite set X are considered.

Keywords:

Semisimple Hopf algebra, Smash product, Transitive module algebra

Classification:

16W30
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