Depth Two Hopf Subalgebras of Semisimple Hopf algebras

Details Depth Two Hopf Subalgebras of Semisimple Hopf algebras Depth Two Hopf Subalgebras of Semisimple Hopf algebras

2008-07-18

arxiv.org/abs/0807.2925v1

Mathematics

Rings and Algebras

5 pages

Scientific paper

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.

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