Depth Two, Normality, and a Trace Ideal Condition for Frobenius Extensions

DOI10.1080/00927870600650291zbMath1115.16020arXivmath/0409346OpenAlexW1989339793MaRDI QIDQ5491354

Burkhard Külshammer, Lars Kadison

Publication date: 11 October 2006

Published in: Communications in Algebra (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/math/0409346

zbMATH Keywords

Hopf algebrasPicard groupsFrobenius extensionsHopf-Galois extensionsseparable extensionsdepth two extensionsgeneralized Miyashita-Ulbrich action

Mathematics Subject Classification ID

Group rings of finite groups and their modules (group-theoretic aspects) (20C05) Separable algebras (e.g., quaternion algebras, Azumaya algebras, etc.) (16H05) Galois theory and commutative ring extensions (13B05)

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