Results 21 to 30 of about 172,609 (284)

The essential spectrum, norm, and spectral radius of abstract multiplication operators

open access: yesConcrete Operators, 2023
Let EE be a complex Banach lattice and TT is an operator in the center Z(E)={T:∣T∣≤λIfor someλ}Z\left(E)=\left\{T:| T| \le \lambda I\hspace{0.33em}\hspace{0.1em}\text{for some}\hspace{0.1em}\hspace{0.33em}\lambda \right\} of EE. Then, the essential norm ‖
Schep Anton R.
doaj   +1 more source

Multiple Perron-Frobenius operators [PDF]

open access: yesPhysical Review E, 2001
A cycle expansion technique for discrete sums of several PF operators, similar to the one used in standard classical dynamical zeta-function formalism is constructed. It is shown that the corresponding expansion coefficients show an interesting universal behavior, which illustrates the details of the interference between the particlar mappings entering
openaire   +5 more sources

Generalized Crofoot transform and applications

open access: yesConcrete Operators, 2023
Matrix-valued asymmetric truncated Toeplitz operators are compressions of multiplication operators acting between two model spaces. These are the generalization of matrix-valued truncated Toeplitz operators. In this article, we describe symbols of matrix-
Khan Rewayat, Farooq Aamir
doaj   +1 more source

Multiplication Operators on Weighted Zygmund Spaces of the First Cartan Domain

open access: yesAxioms, 2023
Inspired by some recent studies of the multiplication operators on holomorphic function spaces of the classical domains such as the open unit disk, the unit ball and the unit polydisk, the purpose of the present paper is to study just the operators that ...
Zhi-Jie Jiang
doaj   +1 more source

A note on preservation of spectra for two given operators [PDF]

open access: yesMathematica Bohemica, 2020
We study the relationships between the spectra derived from Fredholm theory corresponding to two given bounded linear operators acting on the same space.
Carlos Carpintero   +3 more
doaj   +1 more source

Schatten classes of integration operators on Dirichlet spaces [PDF]

open access: yes, 2013
We address the question of describing the membership to Schatten-Von Neumann ideals $\mathcal{S}_ p$ of integration operators $(T_ g f)(z)=\int_{0}^{z}f(\zeta)\,g'(\zeta)\,d\zeta$ acting on Dirichlet type spaces.
Pau, Jordi, Peláez, José Ángel
core   +1 more source

Certain Classes of Operators on Some Weighted Hyperbolic Function Spaces

open access: yesJournal of Mathematics, 2021
In this paper, some classes of concerned multiplication operators consisting of analytic and hyperbolic functions are defined and considered. Furthermore, some properties such as boundedness and compactness of the new operators are discussed.
A. El-Sayed Ahmed, Amnah E. Shammaky
doaj   +1 more source

Boundary-chaotic behaviour of continuous functions under the action of operators [PDF]

open access: yes, 2003
In this paper we introduce two classes of operators on spaces of continuous functions with values in F-spaces under the action of which many functions behave chaotically near the boundary.
Bernal González, Luis   +1 more
core   +2 more sources

Multiplication operators on $L^{p}$ [PDF]

open access: yesStudia Mathematica, 2019
We show that every operator on $L^{p ...
openaire   +3 more sources

Multiplication Operators and Dynamical Systems [PDF]

open access: yesJournal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1992
AbstractLet X be a completely regular Hausdorff space, let V be a system of weights on X and let T be a locally convex Hausdorff topological vector space. Then CVb(X, T) is a locally convex space of vector-valued continuous functions with a topology generated by seminorms which are weighted analogues of the supremum norm.
Singh, R. K., Singh Manhas, Jasbir
openaire   +2 more sources

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