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Galois Extensions for Co-Frobenius Hopf Algebras

✍ Scribed by M. Beattie; S. Dăscălescu; Ş. Raianu

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
253 KB
Volume
198
Category
Article
ISSN
0021-8693

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✦ Synopsis

For H an infinite dimensional co-Frobenius Hopf algebra over a field k, and A an H-comodule algebra, the smash product A࠻H * r at is linked to the ring of coinvariants A c o H by a Morita context. We use the Morita setting to show that for co-Frobenius H, equivalent conditions for ArA c o H to be Galois parallel the case of H finite dimensional.

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