Results 1 to 10 of about 343 (42)

Some strongly bounded classes of Banach spaces [PDF]

open access: yes, 2006
We show that the classes of separable reflexive Banach spaces and of spaces with separable dual are strongly bounded. This gives a new proof of a recent result of E. Odell and Th.
Dodos, Pandelis, Ferenczi, Valentin
core   +1 more source

On Fixed Point Property under Lipschitz and Uniform Embeddings

open access: yesJournal of Function Spaces, Volume 2018, Issue 1, 2018., 2018
We first present a generalization of ω⁎‐Gâteaux differentiability theorems of Lipschitz mappings from open sets to those closed convex sets admitting nonsupport points and then show that every nonempty bounded closed convex subset of a Banach space has the fixed point property for isometries if it Lipschitz embeds into a super reflexive space. With the
Jichao Zhang   +3 more
wiley   +1 more source

Quotients of continuous convex functions on nonreflexive Banach spaces [PDF]

open access: yes, 2007
On each nonreflexive Banach space X there exists a positive continuous convex function f such that 1/f is not a d.c. function (i.e., a difference of two continuous convex functions). This result together with known ones implies that X is reflexive if and
Holicky, P.   +3 more
core   +1 more source

Corrigendum to “On Fixed Point Property under Lipschitz and Uniform Embeddings”

open access: yes, 2019
Journal of Function Spaces, Volume 2019, Issue 1, 2019.
Jichao Zhang, Lingxin Bao, Lili Su
wiley   +1 more source

The class of Banach lattices is not primary

open access: yesForum of Mathematics, Sigma
Building on a recent construction of Plebanek and Salguero-Alarcón, which solved the Complemented Subspace Problem for $C(K)$ -spaces, and the subsequent work of De Hevia, Martínez-Cervantes, Salguero-Alarcón, and Tradacete solving the Complemented
Antonio Acuaviva
doaj   +1 more source

Some geometric properties of Read's space

open access: yes, 2017
We study geometric properties of the Banach space $\mathcal{R}$ constructed recently by C.~Read (arXiv 1307.7958) which does not contain proximinal subspaces of finite codimension greater than or equal to two.
Kadets, Vladimir   +2 more
core   +1 more source

Hyperbolic Metric Spaces and Stochastic Embeddings

open access: yesForum of Mathematics, Sigma
Stochastic embeddings of finite metric spaces into graph-theoretic trees have proven to be a vital tool for constructing approximation algorithms in theoretical computer science.
Chris Gartland
doaj   +1 more source

Geometrical characterization of semilinear isomorphisms of vector spaces and semilinear homeomorphisms of normed spaces [PDF]

open access: yes, 2013
Let $V$ and $V'$ be vector spaces over division rings (possible infinite-dimensional) and let ${\mathcal P}(V)$ and ${\mathcal P}(V')$ be the associated projective spaces.
Pankov, Mark
core  

Smooth and polyhedral approximation in Banach spaces

open access: yes, 2015
We show that norms on certain Banach spaces $X$ can be approximated uniformly, and with arbitrary precision, on bounded subsets of $X$ by $C^{\infty}$ smooth norms and polyhedral norms.
Bible, Victor, Smith, Richard J.
core   +1 more source

Weakly Compact Generating and Shrinking Markusevic Bases [PDF]

open access: yes, 2006
2000 Mathematics Subject Classification: 46B30, 46B03.It is shown that most of the well known classes of nonseparable Banach spaces related to the weakly compact generating can be characterized by elementary properties of the closure of the coefficient ...
Fabian, M.   +3 more
core  

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