Homotopy theory of Hopf Galois extensions
Christian Kassel, Hans-Juergen Schneider
math.QAarXiv:math/0402034
Abstract
We introduce the concept of homotopy equivalence for Hopf Galois extensions and make a systematic study of it. As an application we determine all H-Galois extensions up to homotopy equivalence in the case when H is a Drinfeld-Jimbo quantum group.
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