Search results for "Browder and Weyl type theorem"

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Fredholm Spectra and Weyl Type Theorems for Drazin Invertible Operators

2016

In this paper we investigate the relationship between some spectra originating from Fredholm theory of a Drazin invertible operator and its Drazin inverse, if this does exist. Moreover, we study the transmission of Weyl type theorems from a Drazin invertible operator R, to its Drazin inverse S.

Pure mathematicsFredholm theoryDrazin invertible operatorGeneral MathematicsMathematics::Rings and Algebras010102 general mathematicsDrazin inverse010103 numerical & computational mathematicsType (model theory)01 natural sciencesFredholm theorylaw.inventionAlgebrasymbols.namesakeOperator (computer programming)Invertible matrixlawSettore MAT/05 - Analisi MatematicasymbolsBrowder and Weyl type theoremMathematics (all)0101 mathematicsMathematics
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