Results 11 to 20 of about 45 (44)

A note on topologically b-order bounded sets and generalized b-weakly compact operators [PDF]

open access: yes, 2022
We study the class of order weakly compact operators on locally solid Riesz spaces and the introduced class of generalized b-weakly compact operators on locally convex-solid Riesz spaces. We prove as a consequence that some well-known results on b-weakly
Birol ALTIN   +3 more
core   +1 more source

On the compactness and the essential norm of operators defined by infinite tridiagonal matrices

open access: yesConcrete Operators, 2023
In this article, all sequences u{\boldsymbol{u}}, v{\boldsymbol{v}}, and w{\boldsymbol{w}} that define continuous and compact tridiagonal operators Tu,v,w{T}_{u,v,w} acting on the weighted sequence space lβ2{l}_{\beta }^{2} were characterized ...
Caicedo Alexander   +2 more
doaj   +1 more source

Domination and Kwapień’s factorization theorems for positive Cohen p–nuclear m–linear operators

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
In this paper, we introduce and study the concept of positive Cohen p-nuclear multilinear operators between Banach lattice spaces. We prove a natural analog to the Pietsch domination theorem for this class.
Bougoutaia Amar   +2 more
doaj   +1 more source

Bu’s theorem in the positive situation

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this paper, we valorize the relationship between positive p−summing operators and positive strongly q−summing operators using (Contemp. Math. 328, 145 − 149 (2003)).
Bougoutaia Amar, Belacel Amar
doaj   +1 more source

The lattice‐isometric copies of ℓ∞(Γ) in quotients of Banach lattices

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 47, Page 3003-3006, 2003., 2003
Let E be a Banach lattice and let M be a norm‐closed and Dedekind σ‐complete ideal of E. If E contains a lattice‐isometric copy of ℓ∞, then E/M contains such a copy as well, or M contains a lattice copy of ℓ∞. This is one of the consequences of more general results presented in this paper.
Marek Wójtowicz
wiley   +1 more source

About interpolation of subspaces of rearrangement invariant spaces generated by Rademacher system

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 25, Issue 7, Page 451-465, 2001., 2001
The Rademacher series in rearrangement invariant function spaces “close” to the space L∞ are considered. In terms of interpolation theory of operators, a correspondence between such spaces and spaces of coefficients generated by them is stated. It is proved that this correspondence is one‐to‐one. Some examples and applications are presented.
Sergey V. Astashkin
wiley   +1 more source

A Characterization of l1+(Γ) [PDF]

open access: yes, 2004
This article is dedicated to the memory of my friend and collaborator, Yuri A bramovich.Abstract unavailable at this time... Mathematics Subject Classification (2000): 46B3, 46B10, 46B42, 46A55.Key words: Cones, bases for cones, quasi-interior points ...
Polyrakis, Ioannis A.
core  

Notes on Lattice Ordered Aalgebras [PDF]

open access: yes, 2014
In this paper we introduce a new class of lattice ordered algebra, which will be called a pseudo-almost f-algebra; namely, a lattice ordered algebra A in which a ∧ b = 0 in A implies ab ∧ ba = 0.
Yılmaz, Ruşen
core  

Plus-Minus Property as a Generalization of the Daugavet Property [PDF]

open access: yes, 2010
2000 Mathematics Subject Classification: Primary 46B20. Secondary 47A99, 46B42.It was shown in [2] that the most natural equalities valid for every rank-one operator T in real Banach spaces lead either to the Daugavet equation ||I+T|| = 1 + ||T|| or to ...
Shepelska, Varvara
core  

Iterates of increasing linear operators, via Maia\u27s fixed point theorem [PDF]

open access: yes, 2015
Let X be a Banach lattice. In this paper we give conditions in which an increasing linear operator, A : X ! X is weakly Picard operator (see I.A. Rus, Picard operators and applications, Sc. Math. Japonicae, 58(2003), No. 1, 191-219).
RUS, Ioan A.
core   +1 more source

Home - About - Disclaimer - Privacy