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Publikováno v:
Demonstratio Mathematica, Vol 47, Iss 2, Pp 411-422 (2014)
In this paper, we study the stability of extended Weyl and Browdertype theorems for orthogonal direct sum S⊕T, where S and T are bounded linear operators acting on Banach space. Two counterexamples shows that property (ab), in general, is not prese
Externí odkaz:
https://doaj.org/article/8167c8f5485a4f9bba438b8921190cc4
Publikováno v:
Demonstratio Mathematica, Vol 47, Iss 2, Pp 411-422 (2014)
In this paper, we study the stability of extended Weyl and Browdertype theorems for orthogonal direct sum S⊕T, where S and T are bounded linear operators acting on Banach space. Two counterexamples shows that property (ab), in general, is not prese