Abstract
We discuss analytic functions on a Banach algebra into itself. In particular expressions for derivatives are given as well as convergent Taylor expansions.
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Communicated by H. Araki
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Brittin, W.E., Wyss, W. Taylor's theorem for analytic functions of operators. Commun.Math. Phys. 49, 107–112 (1976). https://doi.org/10.1007/BF01608735
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DOI: https://doi.org/10.1007/BF01608735