2007arXiv (Cornell University)Open access

Quasidiagonality of crossed products

Stefanos Orfanos

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Abstract

We prove that the crossed product A x G of a separable, unital, quasidiagonal C*- algebra A by a discrete, countable, amenable, maximally almost periodic group G is quasidiagonal, provided that the action is almost periodic.

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We prove that the crossed product A x G of a separable, unital, quasidiagonal C*- algebra A by a discrete, countable, amenable, maximally almost periodic group G is quasidiagonal, provided that the action is almost periodic.

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Available abstract

We prove that the crossed product A x G of a separable, unital, quasidiagonal C*- algebra A by a discrete, countable, amenable, maximally almost periodic group G is quasidiagonal, provided that the action is almost periodic.

Key concepts: Crossed product, Countable set, Unital, Separable space, Mathematics, Action (physics), Pure mathematics, Product (mathematics)

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