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math.RA2021
BD algebras and group cohomology
C. -C. Todea
BD algebras (Beilinson-Drinfeld algebras) are algebraic structures which are defined similarly to BV algebras (Batalin-Vilkovisky algebras). The equation defining the BD operator h…
math.KT2021
Symmetric Hochschild cohomology of twisted group algebras
Tiberiu Coconet, Constantin-Cosmin Todea
We show that there is an action of the symmetric group on the Hochschild cochain complex of a twisted group algebra with coefficients in a bimodule. This allows us to define the sy…