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In this article, the class of all Dunford-Pettis $ p $-convergent operators and $ p $-Dunford-Pettis relatively compact property on Banach spaces are investigated. Moreover, we give some conditions on Banach spaces $ X $ and $ Y $ such that…

Functional Analysis · Mathematics 2019-05-06 M. Alikhani

In this paper, we introduce a new class of subsets of bounded linear operators between Banach spaces which is p-version of the uniformly completely continuous sets. Then, we study the relationship between these sets with the equicompact…

Functional Analysis · Mathematics 2020-03-26 M. Alikhani

In the present paper we study unconditionally $p$-converging operators and Dunford-Pettis property of order $p$. New characterizations of unconditionally $p$-converging operators and Dunford-Pettis property of order $p$ are established. Six…

Functional Analysis · Mathematics 2016-08-05 Dongyang Chen , J. Alejandro Chávez-Domínguez , Lei Li

The $p$-Gelfand Phillips property ($1\le p<\infty$) is studied in spaces of operators. Dunford - Pettis type like sets are studied in Banach spaces. We discuss Banach spaces $X$ with the property that every $p$-convergent operator $T:X\to…

Functional Analysis · Mathematics 2018-03-02 Ioana Ghenciu

In this paper, we introduce the concept of a pseudo weakly compact operator of order $ p $ between Banach spaces. Also we study the notion of $ p $-Dunford-Pettis relatively compact property which is in "general" weaker than the…

Functional Analysis · Mathematics 2018-10-15 M. Alikhani

We introduce a class of operators which is called unbounded Dunford-Pettis. In this paper, we study some properties of the operators, relationships with the other classes of operators and the space of these operators.

Functional Analysis · Mathematics 2019-09-25 Wang Zhangjun , Chen Zili , Chen Jinxi , Ouyang Miao

In this paper, we first study the concept of $ p $-sequentially Right property, which is the $ p$-version of the sequentially Right property. Also, we introduce a new class of subsets of Banach spaces which is called $ p$-Right$ ^{\ast} $…

Functional Analysis · Mathematics 2019-05-22 M. Alikhani

This paper introduces and investigates novel properties of uaw-Dunford-Pettis operators on Banach spaces, exploring their relationships with other classes of operators. We further define and characterize new property of Banach lattices.…

Functional Analysis · Mathematics 2026-04-21 Sanaa Boumnidel , Noufissa Hafidi

We study the relation between primariness of Banach spaces and the stronger operator-theoretic notions of the primary factorisation property (PFP) and the uniform primary factorisation property (UPFP). We revisit several classical…

Functional Analysis · Mathematics 2026-05-22 Antonio Acuaviva , Tomasz Kania

First we give conditions on a Banach lattice $E$ so that an operator $T$ from $E$ to any Banach space is disjoint $p$-convergent if and only if $T$ is almost Dunford-Pettis. Then we study when adjoints of positive operators between Banach…

Functional Analysis · Mathematics 2023-09-22 Geraldo Botelho , Luis Alberto Garcia , Vinícius C. C. Miranda

In this paper, we characterize Banach lattices on which each Dunford-Pettis operator (or weak Dunford-Pettis) is unbounded absolute weak Dunford-Pettis operator and the converse.

Functional Analysis · Mathematics 2020-06-23 Hui Li , Zili Chen

In this paper, using the concept of unbounded absolute weak convergence ($uaw$-convergence, for short) in a Banach lattice, we define two classes of continuous operators, named $uaw$-Dunford-Pettis and $uaw$-compact operators. We…

Functional Analysis · Mathematics 2019-02-28 Nazife Erkursun Ozcan , Niyazi Anil Gezer , Omid Zabeti

We introduce and study the class of unbounded DunfordPettis operators. As consequences, we give basic properties and derive interesting results about the duality, domination problem and relationship with other known classes of operators.

Functional Analysis · Mathematics 2020-05-07 Noufissa Hafidi , Jawad H'michane

Let $H,K$ be Hilbert spaces. Let $E \subset B(H)$ and $F \subset B(K)$ be operator spaces in the sense of [1,2]. We study the operators $u : E \to F$ which admit a factorization $E \to OH \to F$ with completely bounded maps through the…

Functional Analysis · Mathematics 2016-09-06 Gilles Pisier

In this paper, almost Dunford-Pettis operators with ranges in $c_0$ are used to identify totally bounded sets in the absolute weak topology. That is, a bounded subset $A$ of a Banach lattice $E$ is $|\sigma|(E,E^\prime)$-totally bounded if…

Functional Analysis · Mathematics 2024-06-14 Halimeh Ardakani , Jin Xi Chen

Recently, J. H'michane et al. introduced the class of weak* Dunford-Pettis operators on Banach spaces, that is, operators which send weakly compact sets onto limited sets. In this paper the domination problem for weak* Dunford-Pettis…

Functional Analysis · Mathematics 2019-02-20 Jin Xi Chen , Zi Li Chen , Guo Xing Ji

This paper is devoted to the study of two classes of operators related to disjointly weakly compact sets, which we call $DW$-DP operators and $DW$-limited operators, respectively. They carry disjointly weakly compact subsets of a Banach…

Functional Analysis · Mathematics 2024-12-03 Jin Xi Chen , Jingge Feng

We study operators carrying disjoint bounded subsets of a Banach lattice into compact, weakly compact, and limited subsets of a Banach space. Surprisingly, these operators behave differently with classical compact, weakly compact, and…

Functional Analysis · Mathematics 2024-10-01 Eduard Emelyanov , Nazife Erkurşun-Özcan , Svetlana Gorokhova

Suppose $X$ is a locally solid vector lattice. It is known that there are several non-equivalent spaces of bounded operators on $X$. In this paper, we consider some situations under which these classes of bounded operators form locally…

Functional Analysis · Mathematics 2018-11-01 Nazife Erkursun Ozcan , Niyazi Anil Gezer , Omid Zabeti

In this paper, we introduce and study the concept of L-Dunford-Pettis sets and L-Dunford-Pettis property in Banach spaces. Next, we give a characterization of the L-Dunford-Pettis property with respect to some well-known geometric…

Functional Analysis · Mathematics 2017-01-04 A. Retbi , B. El Wahbi
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