Remarks on HNN extensions in operator algebras

Yoshimichi Ueda

doi:10.1215/ijm/1254143997

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Home > Journals > Illinois J. Math. > Volume 52 > Issue 3 > Article

Fall 2008 Remarks on HNN extensions in operator algebras

Yoshimichi Ueda

Illinois J. Math. 52(3): 705-725 (Fall 2008). DOI: 10.1215/ijm/1254143997

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Abstract

It is shown that any HNN extension is precisely a compression by a projection of a certain amalgamated free product in the framework of operator algebras. As its applications several questions for von Neumann algebras or C^*-algebras arising as HNN extensions are considered.

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Yoshimichi Ueda. "Remarks on HNN extensions in operator algebras." Illinois J. Math. 52 (3) 705 - 725, Fall 2008. https://doi.org/10.1215/ijm/1254143997