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相关论文: $DW$-compact operators on Banach lattices

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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…

泛函分析 · 数学 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…

泛函分析 · 数学 2024-10-01 Eduard Emelyanov , Nazife Erkurşun-Özcan , Svetlana Gorokhova

We give some characterizations of disjointly weakly compact sets in Banach lattices, namely, those sets in whose solid hulls every disjoint sequence converges weakly to zero. As an application, we prove that a bounded linear operator from a…

泛函分析 · 数学 2023-04-27 Bo Xiang , Jin Xi Chen , Lei Li

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…

泛函分析 · 数学 2019-02-28 Nazife Erkursun Ozcan , Niyazi Anil Gezer , Omid Zabeti

We study (almost) limited operators in Banach lattices and their relations to L-weakly compact, semi-compact, and Dunford-Pettis operators. Several further related topics are investigated.

泛函分析 · 数学 2025-02-14 Safak Alpay , Svetlana Gorokhova

By introducing the concepts of order almost Dunford-Pettis and almost weakly limited operators in Banach lattices, we give some properties of them related to some well known classes of operators, such as, order weakly compact, order…

泛函分析 · 数学 2015-02-03 H. Ardakani , S. M. S. Modarres Mosadegh

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.…

泛函分析 · 数学 2026-04-21 Sanaa Boumnidel , Noufissa Hafidi

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.

泛函分析 · 数学 2020-06-23 Hui Li , Zili Chen

In this paper, we will study some properties of b-weakly compact operators and we will investigate their relationships to some variety of operators on the normed vector lattices. With some new conditions, we show that the modulus of an…

泛函分析 · 数学 2019-05-28 Kazem Haghnejad Azar

In this paper, our main goal is to define the class of weakly Demi Dunford-Pettis applications. We also study their relationship with the classes of weakly Dunford-Pettis and Demi Dunford-Pettis operators, including a condition where these…

泛函分析 · 数学 2026-03-11 Joilson Ribeiro , Fabricio Santos

In this paper we introduce and study a new class of operators related to norm bounded sets on Banach Lattice and which brings together several classical classes of operators (as o-weakly compact operators, b-weakly compact operators,…

泛函分析 · 数学 2022-09-27 Hassan Khabaoui , Jawad H'michane , Kamal Elfahri

We give a necessary condition and a sufficient condition on the Banach lattices E and F so that an operator from E to F is DW-compact whenever its adjoint is DW-compact. We do the same, with different conditions, for DW-DP operators.…

泛函分析 · 数学 2025-05-26 Geraldo Botelho , Ariel Monção

We introduce and study the class of almost limited sets in Banach lattices, that is, sets on which every disjoint weak$^{*}$ null sequence of functionals converges uniformly to zero. It is established that a Banach lattice has order…

泛函分析 · 数学 2013-09-10 Jin Xi Chen , Zi Li Chen , Guo Xing Ji

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…

泛函分析 · 数学 2019-02-20 Jin Xi Chen , Zi Li Chen , Guo Xing Ji

Motivated by the equivalent definition of a continuous operator between Banach spaces in terms of weakly null nets, we introduce two types of continuous operators between Banach lattices using unbounded absolute weak convergence. We…

泛函分析 · 数学 2020-04-07 Omid Zabeti

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…

泛函分析 · 数学 2024-06-14 Halimeh Ardakani , Jin Xi Chen

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…

泛函分析 · 数学 2018-11-01 Nazife Erkursun Ozcan , Niyazi Anil Gezer , Omid Zabeti

In this paper, we study $un$-dual (in symbol, $\ud{E}$) of Banach lattice $E$ and compare it with topological dual $E^*$. If $E^*$ has order continuous norm, then $E^* = \ud{E}$. We introduce and study weakly unbounded norm topology…

泛函分析 · 数学 2020-06-11 Mina Matin , Kazem Haghnejad Azar , Razi Alavizadeh

We investigate the duality and norm completeness in the classes of limitedly--L-weakly compact and Dunford--Pettis--L-weakly compact and operators from Banach spaces to Banach lattices.

泛函分析 · 数学 2023-09-11 Safak Alpay , Eduard Emelyanov , Svetlana Gorokhova

We introduce and study the class of weak almost limited operators. We establish a characterization of pairs of Banach lattices $E$, $F$ for which every positive weak almost limited operator $T:E\rightarrow F$ is almost limited (resp. almost…

泛函分析 · 数学 2014-03-18 A. Elbour , N. Machrafi , M. Moussa
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