English

The completely bounded approximation property for extended Cuntz-Pimsner algebras

Operator Algebras 2007-05-23 v1

Abstract

The extended Cuntz-Pimsner algebra E(H), introduced by Pimsner, is constructed from a Hilbert B,B-bimodule H over a C*-algebra B. In this paper we investigate the Haagerup invariant \Lambda(.) for these algebras, the main result being that \Lambda(E(H))=\Lambda(B) when H is full over B. In particular, E(H) has the completely bounded approximation property if and only if the same is true for B.

Cite

@article{arxiv.math/0311247,
  title  = {The completely bounded approximation property for extended Cuntz-Pimsner algebras},
  author = {Kenneth J. Dykema and Roger R. Smith},
  journal= {arXiv preprint arXiv:math/0311247},
  year   = {2007}
}

Comments

9 pages

R2 v1 2026-07-22T16:59:41.340Z