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Displaying similar documents to “Weyl's theorem, a-Weyl's theorem and single-valued extension property.”

Generalized a-Weyl's theorem and the single-valued extension property.

Mohamed Amouch (2006)

Extracta Mathematicae

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Let T be a bounded linear operator acting on a Banach space X such that T or T* has the single-valued extension property (SVEP). We prove that the spectral mapping theorem holds for the semi-essential approximate point spectrum σ(T); and we show that generalized a-Browder's theorem holds for f(T) for every analytic function f defined on an open neighbourhood U of σ(T): Moreover, we give a necessary and sufficient condition for such T to obey generalized a-Weyl's theorem. An application...

Commutants of the Dunkl Operators in C(R)

Dimovski, Ivan, Hristov, Valentin, Sifi, Mohamed (2006)

Fractional Calculus and Applied Analysis

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2000 Mathematics Subject Classification: 44A35; 42A75; 47A16, 47L10, 47L80 The Dunkl operators. * Supported by the Tunisian Research Foundation under 04/UR/15-02.