On bimodules determining stable equivalences

In the paper one shows that for two indecomposable non-simple self-injective algebras over a field K we have that if the functor - circle times(A) N(B) mod(A) -> mod(B) induces a stable equivalence mod(A) -> mod(B) then the bimodule (A)N(B) is contained in the frame of a connected component in the Auslander-Reiten quiver Gamma(A circle times K) (Bop) (C) 2010 Elsevier B V All rights reserved