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The main purpose of this paper is to study the Bishop-Phelps-Bollob\'as property for operators on $c_0$-sum of euclidean spaces. We show that the pair $ (c_0\left(\bigoplus^{\infty}_{k=1}\ell^{k}_{2} \right),Y)$ has the…

Functional Analysis · Mathematics 2025-06-24 Thiago Grando , Mary Lilian Lourenço

The main purpose of this paper is to study Bishop-Phelps-Bollob\'as type properties on $c_0$ sum of Banach spaces. Among other results, we show that the pair $(c_0(X),Y)$ has the Bishop-Phelps-Bollob\'as property (in short, BPBp) for…

Functional Analysis · Mathematics 2022-02-23 Geunsu Choi , Sun Kwang Kim

In this article, we study a version of the Bishop-Phelps-Bollob\'as property. We investigate a pair of Banach spaces $(X, Y)$ such that every operator from $X$ into $Y$ is approximated by operators which attains its norm at the same point…

Functional Analysis · Mathematics 2016-05-03 Sheldon Dantas , Sun Kwang Kim , Han Ju Lee

We study the Bishop-Phelps-Bollob\'as property (BPBp for short) for compact operators. We present some abstract techniques which allows to carry the BPBp for compact operators from sequence spaces to function spaces. As main applications,…

Functional Analysis · Mathematics 2016-04-05 Sheldon Dantas , Domingo Garcia , Manuel Maestre , Miguel Martin

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

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

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

In this paper we introduce the strong Bishop-Phelps-Bollob\'as property (sBPBp) for bounded linear operators between two Banach spaces $X$ and $Y$. This property is motivated by a Kim-Lee result which states, under our notation, that a…

Functional Analysis · Mathematics 2016-04-07 Sheldon Dantas

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

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 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

In this paper, we introduce the notion of the Bishop-Phelps-Bollob\'as property for numerical radius (BPBp-$\nu$) for a subclass of the space of bounded linear operators. Then, we show that certain subspaces of $\mathcal{L}(L_1(\mu))$ have…

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

We study the Bishop-Phelps-Bollob\'as property for numerical radius (in short, BPBp-nu) and find sufficient conditions for Banach spaces ensuring the BPBp-nu. Among other results, we show that $L_1(\mu)$-spaces have this property for every…

Functional Analysis · Mathematics 2014-04-02 Sun Kwang Kim , Han Ju Lee , Miguel Martín

We show that the space of bounded and linear operators between spaces of continuous functions on compact Hausdorff topological spaces has the Bishop-Phelps-Bollob\'as property. A similar result is also proved for the class of compact…

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

We study the Bishop-Phelps-Bollob\'as property for numerical radius restricted to the case of compact operators (BPBp-nu for compact operators in short). We show that $C_0(L)$ spaces have the BPBp-nu for compact operators for every…

Functional Analysis · Mathematics 2021-02-23 Domingo Garcia , Manuel Maestre , Miguel Martin , Oscar Roldan

Let $X$ be a complex Banach space. We prove that if $L$ is an extremally disconnected compact Hausdorff topological space, then the pair $(X, C(L))$ satisfies the Bishop-Phelps-Bollob\'as property (BPBp for short). As a byproduct, we obtain…

Functional Analysis · Mathematics 2024-03-08 Tirthankar Bhattacharyya , Mainak Bhowmik , Kousik Dhara

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

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 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
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