On stable equivalences with endopermutation source and K\"ulshammer--Puig classes
Abstract
We give a new proof, by using the terminology and notation in the textbook Lin18b, to a result, due to Puig, stating that a stable equivalence of Morita type between two block algebras of finite groups induced by a bimodule with an endopermutation source preserves K\"ulshammer--Puig classes.
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