Results 11 to 20 of about 1,200,505 (78)

Intersection Properties of Balls in Banach Spaces [PDF]

Journal of Function Spaces and Applications, 2013
We introduce a weaker notion of central subspace called almost central subspace, and we study Banach spaces that belong to the class (GC), introduced by Veselý (1997). In particular, we prove that if is an almost central subspace of a Banach space such
C. R. Jayanarayanan
doaj   +2 more sources

Corrigendum to “Best approximation in polyhedral Banach spaces” [J. Approx. Theory 163 (11) (2011) 1748–1771]

Journal of Approximation Theory, 2014
Abstract The present note is a corrigendum to the paper “Best approximation in polyhedral Banach spaces”, J. Approx. Theory 163 (2011) 1748–1771.
V. P. Fonf, J. Lindenstrauss, L. Vesely
openaire   +3 more sources

A subsequence characterization of sequences spanning isomorphically polyhedral Banach spaces [PDF]

Studia Mathematica, 1998
Let $(x_n)$ be a sequence in a Banach space $X$ which does not converge in norm, and let $E$ be an isomorphically precisely norming set for $X$ such that \[ \sum_n |x^*(x_{n+1}-x_n)|< \infty, \; \forall x^* \in E. \qquad (*) \] Then there exists a subsequence of $(x_n)$ which spans an isomorphically polyhedral Banach space.
Androulakis, G.
openaire   +5 more sources

The Wigner Property for CL-Spaces and Finite-Dimensional Polyhedral Banach Spaces – RETRACTION [PDF]

Proceedings of the Edinburgh Mathematical Society, 2021
Xujian Huang, Dongni Tan
exaly   +2 more sources

An amalgamation of the Banach spaces associated with James and Schreier, Part I : Banach-space structure. [PDF]

, 2010
We create a new family of Banach spaces, the James-Schreier spaces, by amalgamating two important classical Banach spaces: James' quasi-reflexive Banach space on the one hand and Schreier's Banach space giving a counterexample to the Banach-Saks property
Alistair Bird, Laustsen, Niels Jakob, Bird, Alistair, Niels Jakob Laustsen   +3 more
core   +4 more sources

Unit balls of polyhedral Banach spaces with many extreme points

Studia Mathematica
Let $E$ be a $(\mathrm{IV})$-polyhedral Banach space. We show that, for each $ε>0$, $E$ admits an $ε$-equivalent $\mathrm{(V)}$-polyhedral norm such that the corresponding closed unit ball is the closed convex hull of its extreme points. In particular, we obtain that every separable isomorphically polyhedral Banach space, for each $ε>0$, admits ...
De Bernardi C. A.
openaire   +5 more sources

Reverses of the Triangle Inequality in Banach Spaces [PDF]

, 2005
Recent reverses for the discrete generalised triangle inequality and its continuous version for vector-valued integrals in Banach spaces are surveyed. New results are also obtained.
Dragomir, Sever S
core   +6 more sources

Optimal control of stochastic partial differential equations in Banach spaces [PDF]

, 2010
In this thesis we study optimal control problems in Banach spaces for stochastic partial differential equations. We investigate two different approaches.
Serrano Perdomo, Rafael Antonio
core   +6 more sources

Several Inequalities of Frechet Spaces [PDF]

, 2005
Several inequalities of Frechet spaces are given in this paper, which can be regarded as the Frechet spaces versions of the well-known polarization identity occurring in Hilbert spaces. Our results generalize many inequalities in Banach spaces.
Shi, Chaofeng
core   +5 more sources

Semigroup wellposedness and asymptotic stability of a compressible Oseen–structure interaction via a pointwise resolvent criterion

Mathematische Nachrichten, Volume 296, Issue 3, Page 1135-1155, March 2023., 2023
Abstract In this study, we consider the Oseen structure of the linearization of a compressible fluid–structure interaction (FSI) system for which the interaction interface is under the effect of material derivative term. The flow linearization is taken with respect to an arbitrary, variable ambient vector field.
Pelin G. Geredeli
wiley   +1 more source