Results 41 to 50 of about 3,235,857 (187)

Compact Weighted Composition Operators and Multiplication Operators between Hardy Spaces

open access: yesAbstract and Applied Analysis, 2008
We estimate the essential norm of a compact weighted composition operator 𝑢𝐶𝜑 acting between different Hardy spaces of the unit ball in ℂ𝑁. Also we will discuss a compact multiplication operator between Hardy spaces.
Sei-Ichiro Ueki, Luo Luo
doaj   +1 more source

Spectra of Weighted Composition Operators with Quadratic Symbols

open access: yesConcrete Operators, 2022
Previously, spectra of certain weighted composition operators W ѱ, φ on H2 were determined under one of two hypotheses: either φ converges under iteration to the Denjoy-Wolff point uniformly on all of 𝔻 rather than simply on compact subsets, or φ is ...
Doctor Jessica   +4 more
doaj   +1 more source

WEIGHTED COMPOSITION OPERATORS AND DYNAMICAL SYSTEMS

open access: yesTamkang Journal of Mathematics, 1998
Let $X$ be a completely regular Hausdorff space, $E$ a Hausdorff locally convex topo­logical vector space, and $V$ a system of weights on $X$. Denote by $CV_b(X, E)$ ($CV_o(X, E)$) the weighted space of all continuous functions $f : X \to E$ such that $vf (X)$ is bounded in $E$ (respectively, $vf$ vanishes at infinity on $X$) for ...
Singh, R. K., Singh, Bhopinder
openaire   +3 more sources

Essential norm and a new characterization of weighted composition operators from weighted Bergman spaces and Hardy spaces into the Bloch space [PDF]

open access: yes, 2017
summary:In this paper, we give some estimates for the essential norm and a new characterization for the boundedness and compactness of weighted composition operators from weighted Bergman spaces and Hardy spaces to the Bloch ...
Li, Songxiao   +5 more
core   +1 more source

Differences of Composition Operators Followed by Differentiation between Weighted Banach Spaces of Holomorphic Functions

open access: yesAbstract and Applied Analysis, 2013
We characterize the boundedness and compactness of differences of the composition operators followed by differentiation between weighted Banach spaces of holomorphic functions in the unit disk.
Cui Chen, Ren-Yu Chen, Ze-Hua Zhou
doaj   +1 more source

Continuous Frames Under the Weighted Composition Operators on the Weighted Bergman Space

open access: yesAxioms
We investigate the behavior of continuous frames in the weighted Bergman space Aα2 over the unit disc under the action of weighted composition operators. Motivated by developments in the discrete frame setting, we provide a comprehensive characterization
Fatma Bozkurt, Faruk Yilmaz
doaj   +1 more source

Weighted Differentiation Composition Operators to Bloch-Type Spaces

open access: yesAbstract and Applied Analysis, 2013
We characterized the boundedness and compactness of weighted differentiation composition operators from BMOA and the Bloch space to Bloch-type spaces. Moreover, we obtain new characterizations of boundedness and compactness of weighted differentiation ...
Junming Liu   +2 more
doaj   +1 more source

The composition operators on weighted Bloch space [PDF]

open access: yesArchiv der Mathematik, 2002
Let \(H(D)\) denote the set of all holomorphic functions in the open unit disk \(D\) and let \(\phi\) be a holomorphic selfmap of \(D\). Suppose that \(X\) and \(Y\) are two function spaces defined on \(D\). The map \(\phi\) is said to have the \(X\)-to-\(Y\) pullback property if \(f\circ \phi\in Y\) for every \(f\in X\).
openaire   +3 more sources

On weighted generalized composition operators on weighted hardy spaces

open access: yesFilomat, 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.
Datt, Gopal, Jain, Mukta, Ohri, Neelima
openaire   +2 more sources

Weighted composition operators and differences of composition operators between weighted Bergman spaces on the ball

open access: yesFilomat, 2022
In this paper, we estimate essential norms of weighted composition operators and differences of two composition operators on the weighted Bergman spaces in the unit ball.
Junfeng Li, Cezhong Tong
openaire   +1 more source

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