Results 51 to 60 of about 73,216 (207)

Constructing separated sequences in Banach spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 2010
If \(X\) is an infinite-dimensional Banach space, then there exists a sequence \((x_n)\) in \(B_X\), the unit ball of \(X\), and \(\gamma >1\) so that \(\text{sep} (x_n) \equiv \inf_{n\neq m} \|x_n-x_m\| \geq \gamma\) [\textit{J.\,Elton} and \textit{E.\,Odell}, ``The unit ball of every infinite-dimensional normed linear space contains a \((1+\epsilon)\)
openaire   +1 more source

Selecting basic sequences in φ-stable Banach spaces [PDF]

open access: yesStudia Mathematica, 2003
Motivated by \textit{B. Maurey's} proof [Math. Sci. Res. Inst. Publ. 34, 149--157 (1999; Zbl 0935.46016)] of \textit{W. T.~Gowers} dichotomy theorem [Geom. Funct. Anal. 6, No. 6, 1083--1093 (1996; Zbl 0868.46007)], the authors prove a quantitative version of this theorem. Let \(\mathcal G_\infty (X)\) denote all closed infinite-dimensional subspaces of
Figiel, Tadeusz   +3 more
openaire   +2 more sources

Marine Macroalgae as a Safe Healthy Food While Meeting Food Security Challenges Arising From Climate Changes

open access: yesFood Safety and Health, EarlyView.
Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley   +1 more source

Kadec-klee Property in Musielak-Orlicz of Sequence Space Equipped with p-Amemiya Norm

open access: yesJournal of Harbin University of Science and Technology, 2021
As we known, H property is a imp01tant property in theory of Banach spaces. It closly connects with the approximation compactness and fixed point prope1ty of nonexpansive mapping. ln this paper, we give necessai-y and sufficient conditions for a point in
ZHAO Li, CUI Yun-an
doaj   +1 more source

Empty-cored sequences in Banach spaces

open access: yesActa et Commentationes Universitatis Tartuensis de Mathematica, 2000
The purpose of the present paper is to describe sequences in Banach spaces in terms of Knopp core. For matrix summability methods, the conditions forcore-shrinkingness are also given. In investigations of core inclusions and several other summability problems in Banach spaces it is vital to be aware ofelements with empty cores.
Iro, Ain, Loone, Leiki
openaire   +2 more sources

On the β-Dual of Banach-Space-Valued Difference Sequence Spaces [PDF]

open access: yesUkrainian Mathematical Journal, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bhardwaj, V.K., Gupta, S.
openaire   +2 more sources

Edge‐Length Preserving Embeddings of Graphs Between Normed Spaces

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT The concept of graph embeddability, initially formalized by Belk and Connelly and later expanded by Sitharam and Willoughby, extends the question of embedding finite metric spaces into a given normed space. A finite simple graph G = ( V , E ) $G=(V,E)$ is said to be ( X , Y ) $(X,Y)$‐embeddable if any set of induced edge lengths from an ...
Sean Dewar   +3 more
wiley   +1 more source

An Inexact Proximal-Type Method for the Generalized Variational Inequality in Banach Spaces

open access: yesJournal of Inequalities and Applications, 2008
We investigate an inexact proximal-type method, applied to the generalized variational inequality problem with maximal monotone operator in reflexive Banach spaces.
J. C. Yao, G. Mastroeni, L. C. Ceng
doaj   +1 more source

A C(K) Banach space which does not have the Schroeder-Bernstein property [PDF]

open access: yes, 2011
We construct a totally disconnected compact Hausdorff space N which has clopen subsets M included in L included in N such that N is homeomorphic to M and hence C(N) is isometric as a Banach space to C(M) but C(N) is not isomorphic to C(L). This gives two
Koszmider, Piotr
core  

Weak-star point of continuity property and Schauder bases

open access: yes, 2013
We characterize the weak-star point of continuity property for subspaces of dual spaces with separable predual and we deduce that the weak-star point of continuity property is determined by subspaces with a Schauder basis in the natural setting of dual ...
Arias, José A. Soler   +1 more
core   +1 more source

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