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Title: Spectrum and numerical range of a compact set
Authors: Bouchen, A.
Chraïbi, M.K.
Keywords: Banach algebra;Hausdorff distance;Spectrum and numerical range;Álgebra de Banach;Distancia de Hausdorff;Espectro y rango numérico
Issue Date: 2013
Publisher: Universidad de Extremadura
Abstract: In this paper, we define the multivalued entire series in a Banach algebra A as well as the exponential, the spectrum and the numerical range of a compact set of A. We provide properties for these two sets which are also verified in the univalued case
Appears in Collections:Extracta Mathematicae Vol. 28, nº 1 (2013)

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