Abstract
If H is a finite dimensional quasi-Hopf algebra and A is a left H-module algebra, we show that there is a Morita context connecting the smash product A#H and the subalgebra of invariants A H . We define also Galois extensions and prove the connection with this Morita context, as in the Hopf case.
2000 Mathematics Subject Classification:
ACKNOWLEDGMENT
The author would like to thank C. Năstăsescu, F. Panaite, and D. Bulacu for their useful comments which improved this article.
Notes
Communicated by R. Wisbauer.