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Related papers: On some local Bishop-Phelps-Bollob\'as properties

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In this paper we show that the Bishop-Phelps-Bollob\'as theorem holds for $\mathcal{L}(L_1(\mu), L_1(\nu))$ for all measures $\mu$ and $\nu$ and also holds for $\mathcal{L}(L_1(\mu),L_\infty(\nu))$ for every arbitrary measure $\mu$ and…

Functional Analysis · Mathematics 2013-03-26 Yun Sung Choi , Sun Kwang Kim , Han Ju Lee , Miguel Martín

We investigate the Bishop-Phelps-Bollob\'as property for the numerical radius (BPBp-nu) through a Zizler-type perspective on the classical Bishop-Phelps-Bollob\'as property (BPBp). This approach allows us to establish two new results: the…

Functional Analysis · Mathematics 2026-04-09 Sun Kwang Kim , Han Ju Lee , Miguel Martin , Oscar Roldan

Recently it was introduced the so-called Bishop-Phelps-Bollob{\'a}s property for positive operators between Banach lattices. In this paper we prove that the pair $(C_0(L), Y) $ has the Bishop-Phelps--Bollob{\'a}s property for positive…

Functional Analysis · Mathematics 2021-08-04 María D. Acosta , Maryam Soleimani-Mourchehkhorti

We study a Bishop-Phelps-Bollob\'as version of Lindenstrauss properties A and B. For domain spaces, we study Banach spaces $X$ such that $(X,Y)$ has the Bishop-Phelps-Bollob\'as property (BPBp) for every Banach space $Y$. We show that in…

Functional Analysis · Mathematics 2017-04-25 Richard Aron , Yun Sung Choi , Sun Kwang Kim , Han Ju Lee , Miguel Martin

We prove that the class of positive operators from $L_\infty (\mu)$ to $L_1 (\nu)$ has the Bishop-Phelps-Bollob\'as property for any positive measures $\mu$ and $\nu$. The same result also holds for the pair $(c_0, \ell_1)$. We also provide…

Functional Analysis · Mathematics 2021-06-14 María D. Acosta , Maryam Soleimani-Mourchehkhorti

In this paper we study a weaker form of the property $\text{\textbf{L}}_{o,o}$ called the weak $\text{\textbf{L}}_{o,o}$ and its uniform version called the weak $\text{BPB}_{\text{op}}$ which is again a weaker form the property…

Functional Analysis · Mathematics 2023-03-16 Uday Shankar Chakraborty

The Bishop-Phelps-Bollob\'{a}s property deals with simultaneous approximation of an operator $T$ and a vector $x$ at which $T$ nearly attains its norm by an operator $T_0$ and a vector $x_0$, respectively, such that $T_0$ attains its norm…

Functional Analysis · Mathematics 2017-04-07 Bernardo Cascales , Antonio J. Guirao , Vladimir Kadets , Mariia Soloviova

In this paper, we are interested in giving two characterizations for the so-called property {\bf L}$_{o,o}$, a local vector valued Bollob\'as type theorem. We say that $(X, Y)$ has this property whenever given $\eps > 0$ and an operador $T:…

Functional Analysis · Mathematics 2021-05-07 Sheldon Dantas , Abraham Rueda Zoca

We characterize real Banach spaces $Y$ such that the pair $(\ell_\infty ^n, Y)$ has the Bishop-Phelps-Bollob\'as property for operators. To this purpose it is essential the use of an appropriate basis of the domain space $\R^n$. As a…

Functional Analysis · Mathematics 2021-06-14 M. D. Acosta , J. L. Dávila

We study the Bishop-Phelps-Bollob\'as property for operators from $\ell_\infty ^4 $ to a Banach space. For this reason we introduce an appropiate geometric property, namely the AHSp-$\ell_\infty ^4$. We prove that spaces $Y$satisfying…

Functional Analysis · Mathematics 2021-06-14 María D. Acosta , José L. Dávila , Maryam Soleimani-Mourchehkhorti

In this paper we study conditions assuring that the Bishop-Phelps-Bollob\'as property (BPBp, for short) is inherited by absolute summands of the range space or of the domain space. Concretely, given a pair (X, Y) of Banach spaces having the…

Functional Analysis · Mathematics 2019-04-24 Yun Sung Choi , Sheldon Dantas , Mingu Jung , Miguel Martín

This paper deals with the \emph{Bishop-Phelps-Bollob\'as property} (\emph{BPBp} for short) on bounded closed convex subsets of a Banach space $X$, not just on its closed unit ball $B_X$. We firstly prove that the \emph{BPBp} holds for…

Functional Analysis · Mathematics 2014-09-11 Dong Hoon Cho , Yun Sung Choi

We introduce the so-called Bishop-Phelps-Bollob\'as property for positive functionals, a particular case of the Bishop-Phelps-Bollob\'as property for positive operators. First we show a version of the Bishop-Phelps-Bollob\'as theorem for…

Functional Analysis · Mathematics 2021-06-11 M. D. Acosta , M. Soleimani-Mourchehkhorti

We prove that the class of positive operators from $L_\infty (\mu)$ to $Y$ has the Bishop-Phelps-Bollob\'as property for any positive measure $\mu$, whenever $Y$ is a uniformly monotone Banach lattice with a weak unit. The same result also…

Functional Analysis · Mathematics 2021-06-14 M. D. Acosta , M. Soleimani-Mourchehkhorti

In this paper, we introduce and study a Lipschitz version of the Bishop-Phelps-Bollob\'as property (Lip-BPB property). This property deals with the possibility of making a uniformly simultaneous approximation of a Lipschitz map $F$ and a…

Functional Analysis · Mathematics 2019-06-18 Rafael Chiclana , Miguel Martin

Given an open subset $U$ of a complex Banach space $E$, a weight $v$ on $U$ and a complex Banach space $F$, let $H^\infty_v(U,F)$ denote the Banach space of all weighted holomorphic mappings from $U$ into $F$, endowed with the weighted…

Functional Analysis · Mathematics 2023-11-27 A. Jiménez-Vargas , M. I. Ramírez , Moisés Villegas-Vallecillos

In this paper, we study the Bishop-Phelps-Bollob\'as property for operators (BPBp for short). To this end, we investigate the generalized approximate hyperplane series property (generalized AHSP for short) for a pair $(X,Y)$ of Banach…

Functional Analysis · Mathematics 2025-10-30 Thiago Grando , Elisa R. Santos

We study approximation of operators between Banach spaces $X$ and $Y$ that nearly attain their norms in a given point by operators that attain their norms at the same point. When such approximations exist, we say that the pair $(X, Y)$ has…

Functional Analysis · Mathematics 2018-11-20 Sheldon Dantas , Vladimir Kadets , Sun Kwang Kim , Han Ju Lee , Miguel Martin

In this paper, we are interested in studying two properties related to the denseness of the operators which attain their numerical radius: the Bishop-Phelps-Bollob\'as point and operator properties for numerical radius (BPBpp-nu and…

Functional Analysis · Mathematics 2020-10-02 Sheldon Dantas , Sun Kwang Kim , Han Ju Lee , Martin Mazzitelli

We study the Bishop-Phelps-Bollob\'as property for operators between Banach spaces. Sufficient conditions are given for generalized direct sums of Banach spaces with respect to a~uniformly monotone Banach sequence lattice to have the…

Functional Analysis · Mathematics 2021-06-14 M. D. Acosta , M. Mastyło , M. Soleimani-Mourchehkhorti