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arXiv · 2411.19739

On stable equivalences with endopermutation source and K\"ulshammer--Puig classes

Xin Huang
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Abstract

We give a new proof, by using the terminology and notation in the textbook \cite{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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Xin Huang. 2024-11-29. On stable equivalences with endopermutation source and K\"ulshammer--Puig classes. https://arxiv.org/abs/2411.19739

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