论文信息 - Four-dimensional Yetter–Drinfeld module algebras over H4

Four-dimensional Yetter–Drinfeld module algebras over H4

Abstract In this paper, we classify four-dimensional Yetter–Drinfeld module algebras over Sweedler's 4-dimensional Hopf algebra H 4 . All H 4 -Azumaya algebras of dimension 4 have been given. In particular, all Yetter–Drinfeld H 4 -module algebra structures on the matrix algebra M 2 ( k ) are classified.

Yinhuo Zhang | Hui-Xiang Chen | Hui-xiang Chen | Yinhuo Zhang

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