Results 41 to 50 of about 421,577 (266)

Dislocated cone metric space over Banach algebra and α-quasi contraction mappings of Perov type

Fixed Point Theory and Applications, 2017
A dislocated cone metric space over Banach algebra is introduced as a generalisation of a cone metric space over Banach algebra as well as a dislocated metric space. Fixed point theorems for Perov-type α-quasi contraction mapping, Kannan-type contraction
Reny George, R Rajagopalan, Hossam A Nabwey, Stojan Radenović   +3 more
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Pfaffians on Banach spaces

Journal of Functional Analysis, 1991
AbstractWe present a theory of relative Pfaffians on infinite-dimensional Banach spaces.
Slawomir Klimek, Andrzej Lesniewski
openaire   +2 more sources

Approximative Compactness and Radon-Nikodym Property in w∗ Nearly Dentable Banach Spaces and Applications

Journal of Function Spaces, 2015
Authors define w∗ nearly dentable Banach space. Authors study Radon-Nikodym property, approximative compactness and continuity metric projector operator in w∗ nearly dentable space.
Shaoqiang Shang, Yunan Cui
doaj   +1 more source

Skewness in Banach spaces [PDF]

Transactions of the American Mathematical Society, 1983
Let E E be a Banach space. One often wants to measure how far E E is from being a Hilbert space. In this paper we define the skewness s ( E ) s(E) of a Banach space E E , 0 ⩽ s ( E ) ⩽ 2
Bruce Reznick, Simon Fitzpatrick
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Fuzzy stabilities of a new hexic functional equation in various spaces

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
The advantage of various fuzzy normed spaces is to analyse impreciseness and ambiguity that arise in modelling problems. In this paper, various classical stabilities of a new hexic functional equation in di erent fuzzy spaces like fuzzy Banach space ...
Dutta Hemen, Kumar B.V. Senthil, Sabarinathan S.   +2 more
doaj   +1 more source

Uniformly factoring weakly compact operators and parametrised dualisation

Forum of Mathematics, Sigma, 2021
This article deals with the problem of when, given a collection $\mathcal {C}$ of weakly compact operators between separable Banach spaces, there exists a separable reflexive Banach space Z with a Schauder basis so that every element in $\mathcal {C ...
L. Antunes, K. Beanland, B. M. Braga
doaj   +1 more source

Strong convergence of an iterative sequence for maximal monotone operators in a Banach space

Abstract and Applied Analysis, 2004
We first introduce a modified proximal point algorithm for maximal monotone operators in a Banach space. Next, we obtain a strong convergence theorem for resolvents of maximal monotone operators in a Banach space which generalizes the previous result by ...
Fumiaki Kohsaka, Wataru Takahashi
doaj   +1 more source

Atomic decomposition for preduals of some Banach spaces [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 2020
Given a Banach space E with a supremum type norm induced by a sequence L=(Lj) of linear forms Lj: X→ R on the Banach space X, we prove that if the unit ball BX is σ(X, L)- compact then E has a predual E* with an atomic decomposition.
Luigi D'Onofrio, Carlo Sbordone, Roberta Schiattarella   +2 more
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On M-spaces and Banach spaces [PDF]

, 2008
We define in this paper the concept of C-space, related with M-spaces and Banach spaces. We obtain various properties on these spaces and propose some open problems.
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Compacta in Banach spaces [PDF]

, 2015
Capítulo 1. Después de estudiar algunos preliminares sobre familias adecuadas de conjuntos, formulamos y probamos algunas equivalencias, cada una de ellas son una condición suficiente para que la familia defina un conjunto compacto de Gul'ko.
Alma Lucía, González Correa
openaire   +3 more sources