Results 31 to 40 of about 5,196 (246)

Fuzzy Convergence Sequence and Fuzzy Compact Operators on Standard Fuzzy Normed Spaces

open access: yesمجلة بغداد للعلوم, 2021
The main purpose of this work is to introduce some types of fuzzy convergence sequences of operators defined on a standard fuzzy normed space (SFN-spaces) and investigate some properties and relationships between these concepts.
Raghad I. Sabri
doaj   +1 more source

Compact and weakly compact Lipschitz operators

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2022
Any Lipschitz map $f : M \to N$ between two pointed metric spaces may be extended in a unique way to a bounded linear operator $\widehat {f} : \mathcal {F}(M) \to \mathcal {F}(N)$ between their corresponding Lipschitz-free spaces. In this paper, we give a necessary and sufficient condition for $\widehat {f}$ to be compact in terms of metric conditions ...
Abbar, Arafat   +2 more
openaire   +4 more sources

The ideal of Lipschitz classical p-compact operators and its injective hull

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
We introduce and investigate the injective hull of the strongly Lipschitz classical p-compact operator ideal defined between a pointed metric space and a Banach space.
Tiaiba Toufik, Achour Dahmane
doaj   +1 more source

Compact operators in TRO’s [PDF]

open access: yesProceedings of the American Mathematical Society, 2012
We give a geometric characterization of the elements of a TRO that can be represented as compact operators by a faithful representation of the TRO.
openaire   +3 more sources

Spaces of compact operators [PDF]

open access: yesMathematische Annalen, 1974
In this paper we study the structure of the Banach space K(E, F) of all compact linear operators between two Banach spaces E and F. We study three distinct problems: weak compactness in K(E, F), subspaces isomorphic to l~ and complementation of K(E, F) in L(E, F), the space of bounded linear operators.
openaire   +1 more source

Compact composition operators [PDF]

open access: yesJournal of the Australian Mathematical Society, 1979
AbstractLet (Хζ,λ) be a σ-finite measure space, and let ϕ be a non-singular measurable transformation from X into itself. Then a composition transformation Cϕ on L2(λ) is defined by Cϕf = f ∘ ϕ. If Cϕ is a bounded operator, then it is called a composition operator.
Ashok Kumar, R.K. Singh
openaire   +2 more sources

Compact differences of weighted composition operators on the weighted Bergman spaces

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we consider the compact differences of weighted composition operators on the standard weighted Bergman spaces. Some necessary and sufficient conditions for the differences of weighted composition operators to be compact are given, which ...
Maocai Wang, Xingxing Yao, Fen Chen
doaj   +1 more source

Intertwining relations for composition operators and integral-type operators between the Bloch-type spaces

open access: yesAIMS Mathematics, 2022
In this paper, the compact intertwining relations of integral-type operators and composition operators between the Bloch-type spaces are investigated.
Hang Zhou
doaj   +1 more source

Goodbye flat lymphoma biology

open access: yesFEBS Letters, EarlyView.
Three‐dimensional (3D) biological systems have become key tools in lymphoma research, offering reliable in vitro and ex vivo platforms to explore pathogenesis and support precision medicine. This review highlights current 3D non‐Hodgkin lymphoma models, detailing their features, advantages, and limitations, and provides a broad perspective on future ...
Carla Faria   +3 more
wiley   +1 more source

The Dixmier trace and the Wodzicki residue for global pseudo-differential operators on compact manifolds.

open access: yesRevista Integración, 2020
In this note, we announce the results of our investigation on the Dixmier trace and the Wodzicki residue for pseudo-differential operators on compact manifolds.
Duván Cardona, César del Corral
doaj  

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