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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

The Bishop-Phelps-Bollob\'as property for operators deals with simultaneous approximation of an operator $T$ and a vector $x$ at which $T: X\rightarrow Y$ nearly attains its norm by an operator $F$ and a vector $z$, respectively, such that…

Functional Analysis · Mathematics 2017-04-25 Vladimir Kadets , Mariia Soloviova

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 consider a stronger property than the Bishop-Phelps-Bollob\'{a}s property for various classes of operators on a complex Hilbert space. The Bishop-Phelps-Bollob\'as {\it point} property for some class $\mathcal{A} \subset…

Functional Analysis · Mathematics 2019-11-04 Yun Sung Choi , Sheldon Dantas , Mingu Jung

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

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

We study uniform $\epsilon-$BPB approximations of bounded linear operators between Banach spaces from a geometric perspective. We show that for sufficiently small positive values of $\epsilon,$ many geometric properties like smoothness,…

Functional Analysis · Mathematics 2024-08-14 Debmalya Sain , Arpita Mal , Kalidas Mandal , Kallol Paul

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 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 introduce the notion of approximate norm attainment set of a bounded linear operator between Banach spaces and use it to obtain a complete characterization of smooth points in the space of compact linear operators, provided the domain…

Functional Analysis · Mathematics 2018-03-19 Debmalya Sain

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

We provide a version for operators of the Bishop-Phelps-Bollob\'{a}s Theorem when the domain space is the complex space $C_0(L)$. In fact we prove that the pair $(C_0(L), Y)$ satisfies the Bishop-Phelps-Bollob\'{a}s property for operators…

Functional Analysis · Mathematics 2021-06-14 Maria D. Acosta

We study the stability behavior of the Bishop-Phelps-Bollob\'as property for Lipschitz maps (Lip-BPB property). This property is a Lipschitz version of the classical Bishop-Phelps-Bollob\'as property and deals with the possibility of…

Functional Analysis · Mathematics 2020-04-23 Rafael Chiclana , Miguel Martin

Let $H^\infty$ denote the Banach algebra of all bounded analytic functions on the open unit disc and denote by $\mathscr{B}(H^\infty)$ the Banach space of all bounded linear operators from $H^\infty$ to itself. We prove that the…

Functional Analysis · Mathematics 2024-06-12 Neeru Bala , Kousik Dhara , Jaydeb Sarkar , Aryaman Sensarma

Extending the celebrated result by Bishop and Phelps that the set of norm attaining functionals is always dense in the topological dual of a Banach space, Bollob\'as proved the nowadays known as the Bishop-Phelps-Bollob\'as theorem, which…

Functional Analysis · Mathematics 2017-04-25 Mario Chica , Vladimir Kadets , Miguel Martin , Javier Meri , Mariia Soloviova

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 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…

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 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

We prove that the class of Banach spaces $Y$ such that the pair $(\ell_1, Y)$ has the Bishop-Phelps-Bollob\'as property for operators is stable under finite products when the norm of the product is given by an absolute norm. We also provide…

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