Depth Two Hopf Subalgebras of Semisimple Hopf algebras

Name: Work Video:
Duration: 3 min 30 s
Description: Let H be a finite dimensional semisimple Hopf algebra over an algebraically closed field of characteristic zero. In this note we give a short proof of the fact that a Hopf subalgebra of H is a depth two subalgebra if and only if it is normal Hopf subalgebra.
Sebastian Burciu
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