DOI: https://doi.org/10.11568/kjm.2012.20.4.
ON THE NORM ATTAINING OPERATORS
Abstract
In this paper, we show the norm attaining paranormal
operators have a nontrivial invariant subspace. Also, we show the
norm attaining quadratically hyponormal weighted shift is subnor-
mal.
Subject classification
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ISSN: 1976-8605 (Print), 2288-1433 (Online)
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