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arXiv 1012.3096math.QAmath.RAmath.RT
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霍普夫代数的表示核与余理想子代数

Kernels of representations and coideal subalgebras of Hopf algebras

Sebastian Burciu

摘要:

定义了霍普夫代数的左、右表示核。在群代数的情形下,左核和右核重合,它们是模的通常核。在一般情况下,我们证明了这些核与\cite{AD}中定义的霍普夫代数的态射的范畴左、右霍普夫核一致.将群代数上的Brauer核定理推广到霍普夫代数上.

英文摘要:

We define left and right kernels of representations of Hopf algebras. In the case of group algebras, left and right kernels coincide and they are the usual kernels of modules. In the general case we show that these kernels coincide with the categorical left and right Hopf kernels of morphisms of Hopf algebras defined in \cite{AD}. Brauer's theorem for kernels over group algebras is generalized to Hopf algebras.

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