Power bounded $m$-left invertible operators
Functional Analysis
2019-03-15 v2
Abstract
A Hilbert space operator is left -invertible by if is -isometric if and is -isometric for some conjugation of \H if If a power bounded operator is left invertible by a power bounded operator , then (also, ) is similar to an isometry. Translated to -isometric and -isometric operators this implies that is -isometric, equivalently isometric, and (respectively) -isometric.
Cite
@article{arxiv.1903.03417,
title = {Power bounded $m$-left invertible operators},
author = {B. P. Duggal and C. S. Kubrusly},
journal= {arXiv preprint arXiv:1903.03417},
year = {2019}
}
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