The variation of Browder’s essential spectrum

Buoni, John J.

doi:10.1090/S0002-9939-1975-0365174-5

The variation of Browder’s essential spectrum
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Proc. Amer. Math. Soc. 48 (1975), 140-144 Request permission

Abstract:

This paper is devoted to giving various conditions concerning small perturbation of linear operators which imply the continuous variation of the Browder essential spectrum in the Hausdorff topology on the complex plane.

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