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math.QA2001
Hopf bimodules are modules over a diagonal crossed product algebra
Florin Panaite
If H is a finite dimensional Hopf algebra, C. Cibils and M. Rosso found an algebra X having the property that Hopf bimodules over H^* coincide with left X-modules. We find two othe…
math.QA2001
Doubles of (quasi) Hopf algebras and some examples of quantum groupoids and vertex groups related to them
Florin Panaite
Let A be a finite dimensional Hopf algebra and (H, R) a quasitriangular bialgebra. Denote by H^*_R a certain deformation of the multiplication of H^* via R. We prove that H^*_R is…