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Frechet differential of a power series in a Banach algebra

Functional Analysis 2012-02-03 v2 Operator Algebras

Abstract

We present two new forms in which the Frechet differential of a power series in a Banach algebra can be expressed in terms of absolutely convergent series involving the commutant C(T):A[A,T]C(T):A\mapsto [A,T].Then we apply the results to the analytic functional calculus in a complex Banach space.

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Cite

@article{arxiv.0804.2836,
  title  = {Frechet differential of a power series in a Banach algebra},
  author = {Benedetto Silvestri},
  journal= {arXiv preprint arXiv:0804.2836},
  year   = {2012}
}

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24 pages