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math.QA2012
Lifting via cocycle deformation
Nicolás Andruskiewitsch, Iván Angiono, Agustín García Iglesias +2
We develop a strategy to compute all liftings of a Nichols algebra over a finite dimensional cosemisimple Hopf algebra. We produce them as cocycle deformations of the bosonization…
math.RA2012★ 3 cited
Mini-course on Hopf algebras--Hopf crossed products--
Akira Masuoka
Hopf crossed products, or in other words, cleft comodule algebras form a special but important class in Hopf-Galois extensions. To discuss this interesting subject, we will start w…