Results 11 to 20 of about 190,726 (359)

Antinormal Weighted Composition Operators [PDF]

Abstract and Applied Analysis, 2016
Let l2=L2N,μ, where N is set of all positive integers and μ is the counting measure whose σ-algebra is the power set of N. In this paper, we obtain necessary and sufficient conditions for a weighted composition operator to be antinormal on the Hilbert ...
Dilip Kumar, Harish Chandra
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Invertible and Isometric Weighted Composition Operators [PDF]

Mediterranean Journal of Mathematics, 2022
AbstractWe consider abstract Banach spaces of analytic functions on general bounded domains that satisfy only a minimum number of axioms. We describe all invertible (equivalently, surjective) weighted composition operators acting on such spaces. For the spaces of analytic functions in the disk whose norm is given in terms of a natural seminorm (such ...
Alejandro Mas, Dragan Vukotić
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Weighted Composition Operators on the Zygmund Space [PDF]

Abstract and Applied Analysis, 2012
We characterize the boundedness and compactness of the weighted composition operator on the Zygmund space Z={f∈H(D):sup⁡z∈D(1-|z|2)|f″(z)|
Shanli Ye, Qingxiao Hu
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On weighted generalized composition operators on weighted hardy spaces

Filomat, 2020
The present paper introduces the class of weighted generalized composition operators of higher order defined on the weighted Hardy spaces. The study of bounded operators belonging to this class is undertaken and an attempt is made to describe their structural and spectral properties.
Gopal Datt, Mukta Jain, Neelima Ohri
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Compact differences of weighted composition operators [PDF]

Collectanea Mathematica, 2020
AbstractCompact differences of two weighted composition operators acting from the weighted Bergman space $$A^p_{\omega }$$ A ω p to another weighted Bergman space $$A^q_{\nu }$$ A ...
Bin Liu, Jouni Rättyä
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Differences weighted composition operators in several variables between some spaces of analytic functions

AIMS Mathematics, 2023
The boundedness and compactness of weighted composition operators have been extensively investigated on various analytic function spaces. In this paper, we study the boundedness and compactness of two several variables differences weighted composition ...
Aydah Mohammed Ayed Al-Ahmadi
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Isometries on spaces of absolutely continuous functions in a noncompact framework [PDF]

, 2020
In this paper we deal with surjective linear isometries between spaces of scalar-valued absolutely continuous functions on arbitrary (not necessarily closed or bounded) subsets of the real line (with at least two points). As a corollary, it is shown that
Font, Juan J., Hosseini, Maliheh
core   +1 more source

Integral type operators from normal weighted Bloch spaces to QT,S spaces

Journal of Hebei University of Science and Technology, 2016
Operator theory is an important research content of the analytic function space theory. The discussion of simultaneous operator and function space is an effective way to study operator and function space.
Yongyi GU, Wenjun YUAN, Fanning MENG
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Cram\'er transform and t-entropy [PDF]

, 2013
t-entropy is the convex conjugate of the logarithm of the spectral radius of a weighted composition operator (WCO). Let $X$ be a nonnegative random variable.
Ostaszewska, Urszula, Zajkowski, Krzysztof   +1 more
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Weighted Composition Operators on BMOA [PDF]

Computational Methods and Function Theory, 2008
The author completely characterizes the boundedness and compactness of the weighted composition operator \(W_{\psi,\varphi}f=\psi (f\circ \varphi)\) acting on \(BMOA\) and \(VMOA\) of the unit disc. The results extend and unify those known for the cases \(\varphi(z)=z\) and \(\psi(z)=1\) corresponding to the multiplication operator \(M_\psi\) [see ...
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