Results 11 to 20 of about 138,439 (275)

Isometries on spaces of absolutely continuous functions in a noncompact framework [PDF]

open access: yes, 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

open access: yesJournal 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
doaj   +1 more source

Closed range weighted composition operators between L^{p}-spaces [PDF]

open access: yesOpuscula Mathematica, 2021
We characterize the closedness of ranges of weighted composition operators between \(L^p\)-spaces, where \(1 \leq p \leq \infty\). When the \(L^p\)-spaces are weighted sequence spaces, several corollaries about this class of operators are also deduced.
Ching-on Lo, Anthony Wai-keung Loh
doaj   +1 more source

Cram\'er transform and t-entropy [PDF]

open access: yes, 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   +1 more
core   +2 more sources

Fredholm Weighted Composition Operator on Weighted Hardy Space

open access: yesJournal of Function Spaces and Applications, 2013
This paper gives a unified characterization of Fredholm weighted composition operator on a class of weighted Hardy spaces.
Liankuo Zhao
doaj   +1 more source

Weighted Composition Operators from Hardy to Zygmund Type Spaces

open access: yesAbstract and Applied Analysis, 2013
This paper aims at studying the boundedness and compactness of weighted composition operator between spaces of analytic functions. We characterize boundedness and compactness of the weighted composition operator from the Hardy spaces to the Zygmund ...
Shanli Ye, Zhengyuan Zhuo
doaj   +1 more source

Weighted differentiation composition operators on the $Q_K(p,q)$ spaces and‎ their essential ‎norms‎ [PDF]

open access: yesJournal of Mahani Mathematical Research
In this paper, firstly we obtain characterization for boundedness of the weighted differentiation composition operator  from $Q_K(p,q) $ space into weighted Zygmund space.
Mostafa Hassanlou   +2 more
doaj   +1 more source

Product of Composition and Multiplication Operator [PDF]

open access: yes, 1902
Operators are nothing but the mapping from a topological space to a topological space. When it satisfies the criterion for the linearity, it becomes linear.
Gardia, Sharata Charan
core   +1 more source

Weight-preserving isomorphisms between spaces of continuous functions: The scalar case [PDF]

open access: yes, 2016
Let F be a finite field (or discrete) and let A andBB be vector spaces of F-valued continuous functions defined on locally compact spaces X and Y , respectively.
Ferrer González, María Vicenta   +2 more
core   +2 more sources

Topological Structures of Derivative Weighted Composition Operators on the Bergman Space

open access: yesJournal of Function Spaces, 2015
We characterize the difference of derivative weighted composition operators on the Bergman space in the unit disk and determine when linear-fractional derivative weighted composition operators belong to the same component of the space of derivative ...
Ce-Zhong Tong, Cheng Yuan, Ze-Hua Zhou
doaj   +1 more source

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