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arXiv 2003.11695math.OA
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Free coactions of a finite dimensional $C^*$-Hopf algebra and strong Morita equivalence

Kazunori Kodaka, Tamotsu Teruya

英文摘要:

We shall introduce a notion of free coactions of a finite dimensional $C^*$-Hopf algebra on a $C^*$-algebra modifying a notion of free actions of a discrete group on a $C^*$-algebra and we shall study several properties on coactions of a finite dimensional $C^*$-Hopf algebra on $C^*$-algebras, which are relating to strong Morita equivalence for inclusions of $C^*$-algebras.

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