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math.RA2022
On the Lie algebra structure of integrable derivations
Benjamin Briggs, Lleonard Rubio y Degrassi
Building on work of Gerstenhaber, we show that the space of integrable derivations on an Artin algebra forms a Lie algebra, and a restricted Lie algebra if contains a field…
math.RA2020
Hochschild cohomology of twisted tensor products
Benjamin Briggs, Sarah Witherspoon
For a tensor product of algebras twisted by a bicharacter, we completely describe its Hochschild cohomology, as a Gerstenhaber algebra, in terms of the Hochschild cohomology of its…