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A remark on contractible Banach algebras

Functional Analysis 2011-10-31 v1

Abstract

It is a longstanding problem whether every contractible Banach algebra is necessarily finite-dimensional. In this note, we confirm this for Banach algebras acting on Banach spaces with the uniform approximation property. This generalizes a result of Paulsen and Smith who proved the same for Banach algebras acting on Hilbert spaces.

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Cite

@article{arxiv.1110.6216,
  title  = {A remark on contractible Banach algebras},
  author = {Narutaka Ozawa},
  journal= {arXiv preprint arXiv:1110.6216},
  year   = {2011}
}

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3 pages