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Purely infinite crossed products by endomorphisms

Journal of Mathematical Analysis and Applications, ISSN: 0022-247X, Vol: 412, Issue: 1, Page: 466-477
2014
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Article Description

We study the crossed product C⁎ -algebra associated to injective endomorphisms, which turns out to be equivalent to study the crossed product by the dilated automorphism. We prove that the dilation of the Bernoulli p -shift endomorphism is topologically free. As a consequence, we have a way to twist any endomorphism of a D -absorbing C⁎ -algebra into one whose dilated automorphism is essentially free and have the same K -theory map than the original one. This allows us to construct purely infinite crossed products C⁎ -algebras with diverse ideal structures.

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