Articles with "composition operator" as a keyword



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Estimate for Norm of a Composition Operator on the Hardy–Dirichlet Space

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Published in 2018 at "Integral Equations and Operator Theory"

DOI: 10.1007/s00020-018-2434-x

Abstract: By using the Schur test, we give some upper and lower estimates on the norm of a composition operator on $$\mathcal {H}^2$$H2, the space of Dirichlet series with square summable coefficients, for the inducing symbol… read more here.

Keywords: norm composition; dirichlet; space; composition operator ... See more keywords

The adjoint of a composition operator via its action on the Szegő kernel

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Published in 2018 at "Analysis and Mathematical Physics"

DOI: 10.1007/s13324-018-0215-y

Abstract: The adjoint of the classic composition operator on the Hardy space of the unit disc determined by a holomorphic self map of the unit disc is well known to send the Szegő kernel function associated… read more here.

Keywords: szeg kernel; adjoint composition; composition; composition operator ... See more keywords

Sarason's composition operator over the half-plane

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Published in 2018 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2018.02.046

Abstract: Abstract Let H = { z ∈ C : Im z > 0 } be the upper half plane, and denote by L p ( R ) , 1 ≤ p ∞ , the usual… read more here.

Keywords: half plane; sarason composition; composition; composition operator ... See more keywords
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The F-composition operator on Hardy space ℍ2

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Published in 2021 at "Journal of Interdisciplinary Mathematics"

DOI: 10.1080/09720502.2021.1884388

Abstract: Abstract The purpose of this paper is to introduce a new operator on Hardy space ℍ2 called the F-composition operator which is generalization of composition operator. Some basic properties of this operator are given in… read more here.

Keywords: operator hardy; operator; hardy space; composition operator ... See more keywords
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Composition operator on Λ????p(w) spaces

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Published in 2017 at "Quaestiones Mathematicae"

DOI: 10.2989/16073606.2017.1329238

Abstract: Abstract In this paper we give an overview of the Λ????p(w) spaces and also characterize the boundedness and compactness of the composition operator on weighted Lorentz spaces. read more here.

Keywords: operator spaces; composition; composition operator;