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Hacettepe Journal of Mathematics and Statistics
Article . 2022 . Peer-reviewed
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Article . 2022
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https://dx.doi.org/10.48550/ar...
Article . 2020
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Product of matrix valued truncated Toeplitz operators

Authors: Muhammad Ahsan KHAN;

Product of matrix valued truncated Toeplitz operators

Abstract

Let $A_\Phi$ be a matrix valued truncated Toeplitz operator -- the compression of multiplication operator to the vector valued model space $H^2(E)\ominus \Theta H^2(E)$, where $\Theta$ is a matrix valued non constant inner function. Under supplementary assumptions, we find necessary and sufficient condition that the product $A_\Phi A_\Psi$ is itself a matrix valued truncated Toeplitz operator.

Keywords

Matematik, model spaces, Mathematical Sciences, Functional Analysis (math.FA), truncated Toeplitz operator, Mathematics - Functional Analysis, model spaces;truncated Toeplitz operator;inner function, Mathematics - Quantum Algebra, Toeplitz operators, Hankel operators, Wiener-Hopf operators, FOS: Mathematics, Quantum Algebra (math.QA), inner function

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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gold