Results 1 to 10 of about 2,927,156 (202)

Cyclic Composition operators on Segal-Bargmann space

Concrete Operators, 2022
We study the cyclic, supercyclic and hypercyclic properties of a composition operator Cϕ on the Segal-Bargmann space ℋ(ℰ), where ϕ(z) = Az + b, A is a bounded linear operator on ℰ, b ∈ ℰ with ||A|| ⩽ 1 and A*b belongs to the range of (I – A*A)½ ...
Ramesh G., Ranjan B. Sudip, Naidu D. Venku   +2 more
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The composition operators between Morrey type spaces

Science, Technology and Innovation, 2022
In this paper, we characterize the boundedness of composition operator Cφ from Morrey space H²K₁ to H²K₂ on the unit complex disk.
Jiajia Xu
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Composition Operators on Classical Spaces of Analytic Functions [PDF]

Sahand Communications in Mathematical Analysis
We shall provide a brief account on new achievements in the study of composition and composition-differentiation operators acting on classical spaces of analytic functions on the unit disk, as well as on the polydisk and the unit ball.
Ali Abkar
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PROPERTIES AND APPLICATIONS OF THE COMPOSITION OPERATOR BETWEEN CERTAIN FUNCTION SPACES. [PDF]

Alfarama Journal of Basic & Applied Sciences, 2023
In this study, we aim to investigate the boundedness and compactness of the composition operator $C_\Theta$, and to provide characterizations of its boundedness and compactness.We introduce necessary conditions and sufficient conditions for the operator $
Samy A. Abd-Elhafeez, A. Kamal, M. Eissa
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Product Type Operators Involving Radial Derivative Operator Acting between Some Analytic Function Spaces

Mathematics, 2021
Let N denote the set of all positive integers and N0=N∪{0}. For m∈N, let Bm={z∈Cm:|z|
Manisha Devi, Kuldip Raj, Mohammad Mursaleen   +2 more
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Difference of composition operators on weighted Bergman spaces over the half-plane

Journal of Inequalities and Applications, 2016
Recently, the bounded, compact and Hilbert-Schmidt difference of composition operators on the Bergman spaces over the half-plane are characterized in (Choe et al. in Trans. Am. Math. Soc., 2016, in press).
Maocai Wang, Changbao Pang
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Approximation and entropy numbers of composition operators

Concrete Operators, 2020
We give a survey on approximation numbers of composition operators on the Hardy space, on the disk and on the polydisk, and add corresponding new results on their entropy numbers, revealing how they are different.
Li Daniel, Queffélec Hervé, Rodríguez-Piazza Luis   +2 more
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The Numerical Range of C*ψ Cφ and Cφ C*ψ

Concrete Operators, 2021
In this paper we investigate the numerical range of C*bφm Caφn and Caφn C*bφm on the Hardy space where φ is an inner function fixing the origin and a and b are points in the open unit disc.
Clifford John, Dabkowski Michael, Wiggins Alan   +2 more
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Local spectral theory of endomorphisms of the disk algebra

Demonstratio Mathematica, 2016
Let A(𝔻) denote the disk algebra. Every endomorphism of A(𝔻) is induced by some ϕ ∈ A(𝔻) with ‖ϕ‖ ≤ 1. In this paper, it is shown that if ϕ is not an automorphism of 𝔻 and ϕ has a fixed point in the open unit disk then the endomorphism induced by ϕ is ...
Trivedi Shailesh, Chandra Harish
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Hypercyclicity of Composition Operators on Orlicz Function Spaces

Moroccan Journal of Pure and Applied Analysis, 2020
In this paper, we discuss the hypercyclic properties of composition operators on Orlicz function spaces. We give some different conditions under which a composition operator on Orlicz spaces is hyper-cyclic or not. Similarly, multiplication operators are
Jafari F., Kamali Z.
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