Results 1 to 10 of about 4,892,851 (274)

Neutrosophic Triplet m-Banach Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
Neutrosophic triplet theory has an important place in neutrosophic theory. Since the neutrosophic triplet set (Nts), which have the feature of having multiple unit elements, have different units than the classical unit, they have more features than the ...
Abdullah Kargın   +3 more
doaj   +1 more source

Fuzzy stabilities of a new hexic functional equation in various spaces

open access: yesAnalele 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   +2 more
doaj   +1 more source

The uniqueness-of-norm problem for Calkin algebras

open access: yes, 2015
We examine the question of whether the Calkin algebra of a Banach space must have a unique complete algebra norm. We present a survey of known results, and make the observation that a recent Banach space construction of Argyros and Motakis (preprint ...
Skillicorn, Richard
core   +1 more source

The Automorphism Group of a Banach Principal Bundle with {1}-structure

open access: yes, 2011
A {1}-structure on a Banach manifold M (with model space E) is an E-valued 1-form on M that induces on each tangent space an isomorphism onto E. Given a Banach principal bundle P with connected base space and a {1}-structure on P, we show that its ...
Klotz, Michael
core   +1 more source

Uniformly factoring weakly compact operators and parametrised dualisation

open access: yesForum 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

Arens Regularity and Weak Amenability of Certain Matrix Algebras [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2006
Motivated by an Arens regularity problem, we introduce the concepts of matrix Banach space and matrix Banach algebra. The notion of matrix normed space in the sense of Ruan is a special case of our matrix normed system.
doaj  

Lipschitz measures and vector-valued Hardy spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We define certain spaces of Banach-valued measures called Lipschitz measures. When the Banach space is a dual space X*, these spaces can be identified with the duals of the atomic vector-valued Hardy spaces HXp(ℝn ...
Magali Folch-Gabayet   +2 more
doaj   +1 more source

Dilations of frames, operator valued measures and bounded linear maps

open access: yes, 2014
We will give an outline of the main results in our recent AMS Memoir, and include some new results, exposition and open problems. In that memoir we developed a general dilation theory for operator valued measures acting on Banach spaces where operator ...
Han, Deguang   +3 more
core   +1 more source

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