EXTENDED SPECTRUM AND EXTENDED EIGENSPACES OF QUASINORMAL OPERATORS

Cassier, G; Alkanjo, H

Cassier, G (reprint author), Univ Lyon 1, CNRS, UMR 5208, Inst Camille Jordan, 43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, France.

BANACH JOURNAL OF MATHEMATICAL ANALYSIS, 2017; 11 (2): 266

Abstract

We say that a complex number lambda is an extended eigenvalueof a bounded linear operator T on a Hilbert space H if there exists anonzero bounded line......

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