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math.QA2012
De-equivariantization of Hopf algebras
Iván Angiono, César Galindo, Mariana Pereira
We study the de-equivariantization of a Hopf algebra by an affine group scheme and we apply Tannakian techniques in order to realize it as the tensor category of comodules over a c…
math.QA2009★ 3 cited
Yetter-Drinfeld modules under cocycle twists
Georgia Benkart, Mariana Pereira, Sarah Witherspoon
We give an explicit formula for the correspondence between simple Yetter-Drinfeld modules for certain finite-dimensional pointed Hopf algebras and those for cocycle twists $H^σ…