Results 11 to 20 of about 858,067 (279)

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.
Xiaosong Liu, Songxiao Li
openaire   +5 more sources

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

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   +3 more sources

Generalized Stević-Sharma operators from the minimal Möbius invariant space into Bloch-type spaces

open access: yesDemonstratio Mathematica, 2023
The aim of this study is to investigate the boundedness, essential norm, and compactness of generalized Stević-Sharma operator from the minimal Möbius invariant space into Bloch-type space.
Guo Zhitao
doaj   +1 more source

Norms and essential norms of linear combinations of endomorphisms [PDF]

open access: yesTransactions of the American Mathematical Society, 2004
We compute norms and essential norms of linear combinations of endomorphisms on uniform algebras.
Gorkin, Pamela, Mortini, Raymond
openaire   +2 more sources

Essential pseudospectra and essential norms of band-dominated operators [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2016
39 pages; minor changes and ...
Hagger, Raffael   +2 more
openaire   +2 more sources

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

Norms of a Product of Integral and Composition Operators between Some Bloch-Type Spaces

open access: yesAxioms, 2023
We present some formulas for the norm, as well as the essential norm, of a product of composition and an integral operator between some Bloch-type spaces of analytic functions on the unit ball, in terms of given symbols and weights.
Stevo Stević
doaj   +1 more source

Global existence and full regularity of the Boltzmann equation without angular cutoff [PDF]

open access: yes, 2010
We prove the global existence and uniqueness of classical solutions around an equilibrium to the Boltzmann equation without angular cutoff in some Sobolev spaces. In addition, the solutions thus obtained are shown to be non-negative and $C^\infty$ in all
A. Bobylev   +62 more
core   +5 more sources

Against Essential Mental Normativity Again [PDF]

open access: yesDialogue, 2011
ABSTRACT: In a recent paper (2008), I presented two arguments against the thesis that intentional states are essentially normative. In this paper, I defend those arguments from two recent responses, one from Nick Zangwill in his (2010) and one from Daniel Laurier in the present volume, and offer improvements of my arguments in light of Laurier’s ...
openaire   +2 more sources

Essential Norm of the Weighted Composition Operators Between Growth Space [PDF]

open access: yesSahand Communications in Mathematical Analysis
For $\alpha>0$, the growth space $\mathcal{A}^{-\alpha}$ is the space of all function $f\in H(\DD)$ such that $$\left\|f\right\|_{\mathcal{A}^{-\alpha}}=\sup_{z\in\DD}\left(1-\left|z\right|^2\right)^\alpha \left|f(z)\right|
Ebrahim Abbasi, Mostafa Hassanlou
doaj   +1 more source

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