Results 11 to 20 of about 22,882 (222)

ON THE NORM ATTAINING OPERATORS [PDF]

open access: yesKorean Journal of Mathematics, 2012
Summary: In this paper, we show the norm attaining paranormal operators have a nontrivial invariant subspace. Also, we show the norm attaining quadratically hyponormal weighted shift is subnormal.
openaire   +3 more sources

Norm attaining operators [PDF]

open access: yesIsrael Journal of Mathematics, 1982
Every Banach space is isomorphic to a space with the property that the norm-attaining operators are dense in the space of all operators into it, for any given domain space. A super-reflexive space is arbitrarily nearly isometric to a space with this property.
Jonathan Partington
openaire   +3 more sources

Norm Attaining Operators on Some Classical Banach Spaces [PDF]

open access: yesMathematische Nachrichten, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Acosta, María D., Ruiz, César
openaire   +4 more sources

Norm-attaining compact operators

open access: yesJournal of Functional Analysis, 2014
To appear in J. Funct. Anal.
Miguel Martin
openaire   +5 more sources

Denseness for norm attaining operator-valued functions

open access: yesLinear Algebra and its Applications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Enflo, Per   +2 more
openaire   +4 more sources

Norm-attaining operators which satisfy a Bollobás type theorem [PDF]

open access: yesBanach Journal of Mathematical Analysis, 2021
In this paper, we are interested in studying the set $\mathcal{A}_{\|\cdot\|}(X, Y)$ of all norm-attaining operators $T$ from $X$ into $Y$ satisfying the following: given $ >0$, there exists $ $ such that if $\|Tx\| > 1 - $, then there is $x_0$ such that $\| x_0 - x\| < $ and $T$ itself attains its norm at $x_0$.
Sheldon Dantas   +2 more
openaire   +4 more sources

Bounded holomorphic functions attaining their norms in the bidual [PDF]

open access: yes, 2015
Under certain hypotheses on the Banach space $X$, we prove that the set of analytic functions in $\mathcal{A}_u(X)$ (the algebra of all holomorphic and uniformly continuous functions in the ball of $X$) whose Aron-Berner extensions attain their norms, is
Carando, Daniel, Mazzitelli, Martin
core   +3 more sources

Norm Attaining Multilinear Forms on 𝐿1(𝝁)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
Given an arbitrary measure 𝜇, this study shows that the set of norm attaining multilinear forms is not dense in the space of all continuous multilinear forms on 𝐿1(𝜇). However, we have the density if and only if 𝜇 is purely atomic. Furthermore, the study
Yousef Saleh
doaj   +1 more source

A Lindenstrauss theorem for some classes of multilinear mappings [PDF]

open access: yes, 2015
Under some natural hypotheses, we show that if a multilinear mapping belongs to some Banach multlinear ideal, then it can be approximated by multilinear mappings belonging to the same ideal whose Arens extensions simultaneously attain their norms.
Carando, D.   +2 more
core   +3 more sources

Norm Attaining Operators and Pseudospectrum [PDF]

open access: yesIntegral Equations and Operator Theory, 2009
It is shown that if $11$, the operator $I+T$ attains its norm. A reflexive Banach space $X$ and a bounded rank one operator $T$ on $X$ are constructed such that $\|I+T\|>1$ and $I+T$ does not attain its norm.
openaire   +2 more sources

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