Results 301 to 310 of about 4,637,538 (347)

The Essential Norm of a Composition Operator

The Annals of Mathematics, 1987
Let \(\Omega\subset{\mathbb{C}}^ n\) be a domain and \(\Phi: \Omega\to \Omega\) a mapping. The operator \(T: f\to f\circ \Phi\) is called a composition operator. The subject of composition operators represents a fertile arena for the interaction of operator theory, hard analysis, and geometry.
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The essential norm of the integral type operators

Banach Journal of Mathematical Analysis, 2019
On the basis of the characterizations of the boundedness and compactness of the Volterra type operator $$I_{g, \varphi }$$ from mixed-norm spaces $$H(p,\, q,\, \phi )$$ to Zygmund spaces $$ \mathcal {Z}$$, the authors provide a function-theoretic estimate for the essential norm of Volterra type operator $$I_{g, \varphi }$$ by means of the definition of
Xiaoman Liu, Yongmin Liu, Lina Xia, Yanyan Yu   +3 more
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Against essential normativity of the mental

Philosophical Studies, 2007
A number of authors have recently developed and defended various versions of ‘normative essentialism’ about the mental, i.e. the claim that propositional attitudes are constitutively or essentially governed by normative principles. I present two arguments to the effect that this claim cannot be right.
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Essentialism and Nonnaturalist Normative Supervenience

Topoi, 2017
In this essay I defend a kind of nonnaturalist normative supervenience, grounded in the essences of things. Essentialist theories, in fact, give us the tools to treat the nexus of normative supervenience as a nexus of metaphysical necessity, holding between the normative and the natural.
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The essential norm of an operator is not self-dual

Israel Journal of Mathematics, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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The essential norm of Hankel operator on the Bergman space

Integral Equations and Operator Theory, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Peng Lin, Richard Rochberg
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Essential norm of weighted differentiation composition operators on Bergman spaces with admissible weights

The Journal of Analysis, 2022
Shayesta Farooq, A. Sharma, M. Mursaleen
semanticscholar   +1 more source

Essential norm of the difference of weighted composition operators

Monatshefte für Mathematik, 2007
We study differences of weighted composition operators between weighted Banach spaces H ν ∞ of analytic functions with weighted sup-norms and give an expression for the essential norm of these differences. We apply our result to estimate the essential norm of differences of composition operators acting on
Mikael Lindström, Elke Wolf
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Essential norm estimates for multiplication operators on $$L_p(\mu )$$ spaces

Afrika Matematika, 2021
R. E. Castillo, Yesid A. Lemus-Abril, J. Ramos-Fernández   +2 more
semanticscholar   +1 more source

Essentially Grounded Non-Naturalism and Normative Supervenience [PDF]

Topoi, 2017
Non-naturalism—roughly the view that normative properties and facts are sui generis and incompatible with a purely scientific worldview—faces a difficult challenge with regard to explaining why it is that the normative features of things supervene on their natural features.
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