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math.RT2024
On stable equivalences with endopermutation source and Külshammer--Puig classes
Xin Huang
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 blo…
math.RT2024
Virtual Morita equivalences and Brauer character bijections
Xin Huang
We extend a theorem of Kessar and Linckelmann concerning Morita equivalences and Brauer character bijections between blocks to virtual Morita equivalences. As a corollary, we obtai…