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Simplicity of Partial Crossed Products (1306.5468v1)

Published 23 Jun 2013 in math.RA and math.OA

Abstract: In this article, we consider a twisted partial action $\alpha$ of a group $G$ on a ring $R$ and it is associated partial crossed product $R*{\alpha}wG$. We study necessary and sufficient conditions for the commutativity and simplicity of $R*{\alpha}wG$. Let $R=C(X)$ the algebra of continuous functions of a topological space $X$ on the complex numbers and $C(X)_{\alpha}G$ the partial skew group ring, where $\alpha$ is a partial action of a topological group $G$ on $C(X)$. We study some topological properties to obtain results on the algebra $C(X)$. Also, we study the simplicity of $C(X){\alpha}G$ using topological properties and the results about the simplicity of partial crossed product obtained for $R*{\alpha}wG$.

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