Polaroid type operators under quasi-affinities

doi:10.1016/j.jmaa.2010.05.057

Journal of Mathematical Analysis and Applications

Volume 371, Issue 2, 15 November 2010, Pages 485-495

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Abstract

In this paper we study the preservation of some polaroid conditions under quasi-affinities. As a consequence, we derive several results concerning the preservation of Weyl type theorems and generalized Weyl type theorems under quasi-affinities.

Keywords

Polaroid type operators

Weyl type theorems

Quasi-affinity