Results 1 to 10 of about 1,449 (232)

Geometric Characterization of Injective Banach Lattices

open access: yesMathematics, 2021
This is a continuation of the authors’ previous study of the geometric characterizations of the preduals of injective Banach lattices. We seek the properties of the unit ball of a Banach space which make the space isometric or isomorphic to an injective ...
Anatoly Kusraev, Semën Kutateladze
doaj   +3 more sources

Komlós properties in Banach lattices [PDF]

open access: greenActa Mathematica Hungarica, 2018
Several Koml s like properties in Banach lattices are investigated. We prove that $C(K)$ fails the $oo$-pre-Koml s property, assuming that the compact Hausdorff space $K$ has a nonempty separable open subset $U$ without isolated points such that every $u\in U$ has countable neighborhood base.
Eduard Emelyanov   +2 more
openalex   +4 more sources

On approximate solution of lattice functional equations in Banach f-algebras

open access: goldAIMS Mathematics, 2020
The aim of the current manuscript is to prove the Hyers-Ulam stability of supremum, infimum and multiplication preserving functional equations in Banach f -algebras. In fact, by using the direct method and the fixed point method, the Hyers-Ulam stability
Ehsan Movahednia   +3 more
doaj   +2 more sources

Some properties of weak Banach-Saks operators [PDF]

open access: yesMathematica Bohemica, 2021
We establish necessary and sufficient conditions under which weak Banach-Saks operators are weakly compact (respectively, {\rm L}-weakly compact; respectively, {\rm M}-weakly compact).
Othman Aboutafail   +2 more
doaj   +1 more source

Stability of lattice functional equation in UCBF-algebra [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
The main aim of this research is to investigate the stability of a functional equation that maintains the lattice structure in a uniformly complete unital Banach $f$-algebra.
Ehsan Movahednia
doaj   +1 more source

Bishop-Phelps-Bollobás property for positive operators when the domain is L∞

open access: yesBulletin of Mathematical Sciences, 2021
We prove that the class of positive operators from L∞(μ) to Y has the Bishop-Phelps-Bollobás property for any positive measure μ, whenever Y is a uniformly monotone Banach lattice with a weak unit.
María D. Acosta   +1 more
doaj   +1 more source

A note on the Banach lattice $c_0( \ell_2^n)$, its dual and its bidual

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
The main purpose of this paper is to study some geometric and topological properties of $c_0$-sum of the finite dimensional Banach lattice $\ell_2^n$, its dual and its bidual.
M.L. Lourenço, V.C.C. Miranda
doaj   +1 more source

On the Banach lattice $$c_0$$ [PDF]

open access: yesRevista Matemática Complutense, 2020
We show that $c_0$ is not a projective Banach lattice, answering a question of B. de Pagter and A. Wickstead. On the other hand, we show that $c_0$ is complemented in the free Banach lattice generated by itself (seen as a Banach space). As a consequence, the free Banach lattice generated by $c_0$ is not projective.
Antonio Avilés   +2 more
openaire   +2 more sources

Application of ${\rm (L)$ sets to some classes of operators} [PDF]

open access: yesMathematica Bohemica, 2016
The paper contains some applications of the notion of $L$ sets to several classes of operators on Banach lattices. In particular, we introduce and study the class of order ${\rm (L)$-Dunford-Pettis operators, that is, operators from a Banach space into a
Kamal El Fahri   +3 more
doaj   +1 more source

Applications for Unbounded Convergences in Banach Lattices

open access: yesFractal and Fractional, 2022
Several recent papers investigated unbounded convergences in Banach lattices. The focus of this paper is to apply the results of unbounded convergence to the classical Banach lattice theory from a new perspective.
Zhangjun Wang, Zili Chen
doaj   +1 more source

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