Results 1 to 10 of about 10,229 (130)

Weakly compact sets and smooth norms in Banach spaces [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2002
Two smoothness characterisations of weakly compact sets in Banach spaces are given. One that involves pointwise lower semicontinuous norms and one that involves projectional resolutions of identity.
Fabian, Marián   +2 more
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Norm, essential norm and weak compactness of weighted composition operators between dual Banach spaces of analytic functions

open access: yesJournal of Mathematical Analysis and Applications, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eklund, T. (Ted)   +3 more
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Norm attainment for compact operators on reflexive Banach spaces

open access: yesAnnals of Mathematics and Computer Science
This paper explores the norm attainment of compact operators on reflexive Banach spaces, emphasizing the interplay between geometric and structural properties. Key results include characterizations of norm attainment through sequences in the unit sphere, uniqueness of norm attainment in strictly convex spaces, and stability of norm attainment under ...
null Mogoi Evans, null Obogi Karieko
openaire   +1 more source

The non-compact normed space of norms on a finite-dimensional Banach space

open access: yes, 2018
We discuss a new pseudometric on the space of all norms on a finite-dimensional vector space (or free module) $\mathbb{F}^k$, with $\mathbb{F}$ the real, complex, or quaternion numbers. This metric arises from the Lipschitz-equivalence of all norms on $\mathbb{F}^k$, and seems to be unexplored in the literature.
openaire   +2 more sources

Some estimates for the Banach space norms in the von Neumann algebras associated with the Berezin's quantization of compact Riemann

open access: yes, 1995
AMSTEX, 31 pages. This paper has been circulated (in hard copy version) under the Title : The fundamental group of the von Neumann algebra of any cocompact subgroup of $PSL(2,R)$ contains the positive rationals. This is a revised version- Some (rather minor) errors have been corrected and the Title has been changed to something which looked more ...
openaire   +2 more sources

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