Results 11 to 20 of about 38,889 (311)

Binormal and complex symmetric weighted composition operators on the Fock Space over $\mathbb{C}$

Математичні Студії, 2023
In this paper, we give simple characterization of binormal weighted composition operators $C_{\psi, \phi}$ on the Fock space over $\mathbb{C}$ where weight function is of the form $\psi(\zeta) = e^{\langle \zeta, c \rangle}$ for some $c \in \mathbb{C ...
C. Santhoshkumar
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Hilbert-Schmidtness of weighted composition operators and their differences on Hardy spaces [PDF]

Opuscula Mathematica, 2020
Let \(u\) and \(\varphi\) be two analytic functions on the unit disk \(\mathbb{D}\) such that \(\varphi(\mathbb{D}) \subset \mathbb{D}\). A weighted composition operator \(uC_{\varphi}\) induced by \(u\) and \(\varphi\) is defined on \(H^2\), the Hardy ...
Ching-on Lo, Anthony Wai-keung Loh
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Weighted composition operators on Hardy–Smirnov spaces

Concrete Operators, 2022
Operators of type f → ψf ◦ φ acting on function spaces are called weighted composition operators. If the weight function ψ is the constant function 1, then they are called composition operators.
Matache Valentin
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Isometric composition operators on weighted Dirichlet space [PDF]

, 2016
summary:We investigate isometric composition operators on the weighted Dirichlet space $\mathcal {D}_\alpha $ with standard weights $(1-|z|^2)^\alpha $, $\alpha >-1$.
Zhou, Ze-Hua, Han, Shi-An
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Eigen Neutrosophic Z- Set and Neutrosophic Z- Relation [PDF]

Neutrosophic Sets and Systems
This paper introduces an innovative framework for computing the Greatest Eigen Neutrosophic Z-set and the Least Eigen Neutrosophic Z-set using the composition operators, namely max-min-min and min-max-max.
P. Sheeba Maybell, M. M. Shanmugapriya
doaj   +1 more source

Differences of weighted composition operators from Hardy space to weighted-type spaces on the unit ball [PDF]

, 2012
summary:In this paper, we limit our analysis to the difference of the weighted composition operators acting from the Hardy space to weighted-type space in the unit ball of $\mathbb {C}^N$, and give some necessary and sufficient conditions for their ...
Liang, Yu-Xia, Zhou, Ze-Hua
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Isometric multiplication operators and weighted composition operators of BMOA

Journal of Inequalities and Applications, 2021
Let u be an analytic function in the unit disk D $\mathbb{D}$ and φ be an analytic self-map of D $\mathbb{D}$ . We give characterizations of the symbols u and φ for which the multiplication operator M u $M_{u}$ and the weighted composition operator M u ,
Ligang Geng
doaj   +1 more source

A characterization of composition operators on algebras of analytic functions [PDF]

, 2008
We give a characterization of composition operators between algebras of analytic functions on a Banach space. We show (under fairly general conditions) that they are precisely the multiplicative operators that are transposes of operators of between the ...
Carando, Daniel Germán
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Composite operators in QCD [PDF]

Nuclear Physics B, 1992
We give a formula for the derivatives of a correlation function of composite operators with respect to the parameters (i.e., the strong fine structure constant and the quark mass) of QCD in four-dimensional euclidean space. The formula is given as spatial integration of the operator conjugate to a parameter. The operator product of a composite operator
openaire   +2 more sources

Centered weighted composition operators via measure theory [PDF]

, 2017
summary:We describe the centered weighted composition operators on $L^2(\Sigma )$ in terms of their defining symbols.
Jafari Bakhshkandi, Mehri, Mehri Jafari Bakhshkandi, Jabbarzadeh, Mohammad Reza, Mohammad Reza Jabbarzadeh   +3 more
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