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On numerical range and spectral properties of some classes of operators in hilbert spaces

Abstract

It is a well known fact in operator theory that the numerical range and spectral properties are significant in determining the behavior of different classes of operators. In this paper we focus mainly on the class of compact operators in Hilbert spaces. AMS subject classification 47B47, 47A30, 47B20.

Matrix Theory and AlgorithmsNumerical methods in inverse problemsHolomorphic and Operator TheoryMathematicsHilbert spaceCompact operator on Hilbert spaceOperator (biology)Focus (optics)Class (philosophy)Nuclear operatorOperator theoryRange (aeronautics)Numerical range
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On numerical range and spectral properties of some classes of operators in hilbert spaces · Scinovex