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Essential norm of some extensions of the generalized composition operators between kth weighted-type spaces [PDF]

open access: yesJournal of Inequalities and Applications, 2017
We calculate the essential norm of some extensions of the generalized composition operators between kth weighted-type spaces on the unit disk in the complex plane, considerably extending some results in the literature.
Stevo Stević
doaj   +4 more sources

Boundedness and Essential Norm of an Operator between Weighted-Type Spaces of Holomorphic Functions on a Unit Ball [PDF]

open access: yesAxioms, 2023
The boundedness of a sum-type operator between weighted-type spaces is characterized and its essential norm is estimated.
Stevo Stević, Sei-Ichiro Ueki
doaj   +4 more sources

Essential Norm of Operators into Weighted-Type Spaces on the Unit Ball [PDF]

open access: yesAbstract and Applied Analysis, 2011
The essential norm of any operator from a general Banach space of holomorphic functions on the unit ball in ℂn into the little weighted-type space is calculated. Some applications of the formula are given.
Pablo Galindo   +2 more
doaj   +4 more sources

Essential supremum norm differentiability [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
The points of Gateaux and Fréchet differentiability in L∞(μ,X) are obtained, where (Ω,∑,μ) is a finite measure space and X is a real Banach space. An application of these results is given to the space B(L1(μ,ℝ),X) of all bounded linear operators from L1 ...
I. E. Leonard, K. F. Taylor
doaj   +3 more sources

Norm and Essential Norm of a Weighted Composition Operator on the Bloch Space [PDF]

open access: yesIntegral Equations and Operator Theory, 2017
We give some new estimates for the norm and essential norm of a weighted composition operator on the Bloch space. As corollaries, we obtain some new characterizations of the boundedness and compactness of a weighted composition operator on the Bloch space.
Songxiao Li   +2 more
exaly   +4 more sources

Estimates of Norm and Essential norm of Differences of Differentiation Composition Operators on Weighted Bloch Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
Norm and essential norm of differences of differentiation composition operators between Bloch spaces have been estimated in this paper. As a result, we find characterizations for boundedness and compactness of these operators.
Mostafa Hassanloo
doaj   +2 more sources

Conformity to social norm interventions is not amplified in tighter nations [PDF]

open access: yesCommunications Psychology
Social norms have a reliable and oftentimes strong influence on individual attitudes and behaviors across environmental and other domains. This influence has been theorized to differ by cultural tightness—the extent to which people adhere to shared ...
Jane Acierno   +7 more
doaj   +2 more sources

Essential norm of substitution operators on L p spaces

open access: yesIndian Journal of Pure and Applied Mathematics, 2012
Let \((X,\Sigma, \mu)\) be a \(\sigma\)-finite measure space. Suppose that \(\varphi:X \to X\) is a non-singular transformation, that is, \(\mu\circ \varphi^{-1} \ll \mu\), and let \(u\) be a \(\Sigma\)-measurable function on \(X\). By the Radon-Nikodým theorem, for every \(f\in L^1\) there exists a \(\mu\)-unique function \(\tilde{f}_{\varphi}^{u}\in ...
Yousef Estaremi   +2 more
exaly   +3 more sources

Essential Norm of the Generalized Integration Operator from Zygmund Space into Weighted Dirichlet Type Space [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2022
Let $H(\mathbb{D})$ be the space of all analytic functions on the open unit disc $\mathbb{D}$ in the complex plane $\mathbb{C}$. In this paper, we investigate the boundedness and compactness of the generalized integration operator$$I_{g,\varphi}^{(n)}(f)(
Fariba Alighadr   +2 more
doaj   +1 more source

Product-type Operators Between Minimal M\"{o}bius Invariant Spaces and Zygmund Type Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
In this work,  we consider product-type  operators $T^m_{u,v,\varphi}$ from minimal M\"{o}bius invariant spaces into Zygmund-type spaces.  Firstly, some characterizations for   the boundedness of these operators are given.
Mostafa Hassanlou   +3 more
doaj   +1 more source

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