Results 161 to 170 of about 43,621 (220)

The free abelian topological group as a subgroup of the free locally convex topological vector space [PDF]

open access: possibleJournal of Group Theory, 2003
An invariant pseudometric \(\rho\) on an abelian group \(G\) is said to have the Enflo property provided \(\forall_{x\in G}[\rho(x^2,e)=2\rho(x,e)].\) It is proved that a Hausdorff abelian group can be embedded as a topological subgroup in a locally convex Hausdorff topological vector space \(\Leftrightarrow\) the topology of \(G\) is generated by a ...
Carolyn E. McPhail
openaire   +3 more sources

Variational inequalities in locally convex Hausdorff topological vector spaces

Archiv der Mathematik, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R. Verma
openaire   +4 more sources

On locally convex I-topological vector spaces

open access: closedFuzzy Sets and Systems, 2006
Abstract In this paper, the relation between two definitions of locally convex I -topological vector spaces is studied. These two definitions are introduced by Katsaras [Fuzzy topological vector spaces II, Fuzzy Sets and Systems 12 (1984) 143–154] and Wu and Li [Convexity and fuzzy topological vector spaces, Science Exploration (China) 4(1) (1984) 1–
Hui Zhang, Hui Zhang, Jin-xuan Fang
openaire   +3 more sources

On the Set of Locally Convex Topologies Compatible with a Given Topology on a Vector Space: Cardinality Aspects

Journal of Mathematical Sciences, 2016
For a topological vector space (X, τ), we consider the family LCT(X, τ) of all locally convex topologies defined on X, which give rise to the same continuous linear functionals as the original topology τ. We prove that for an infinite-dimensional reflexive Banach space (X, τ), the cardinality of LCT(X, τ) is at least \( \mathfrak{c} \).
V. Tarieladze, E. Martín-Peinador
openaire   +3 more sources

Sequential Separation Theorems and S-Locally Convex Topological Vector Spaces

open access: closedMathematische Nachrichten, 1982
The Hahn-Banach theorem, when formulated in a topological vector space, gives rise to a number of 'separation' results. For example: Let (X,t) be a topological vector space (here X is our space, t our topology) over the real or complex field, let A be a non-empty, convex, open subset of X and M an affine subspace of X such that \(A\cap M=\emptyset ...
Ray F. Snipes
openaire   +3 more sources

Connectedness of Cone Superefficient Point Sets in Locally Convex Topological Vector Spaces [PDF]

open access: closedJournal of Optimization Theory and Applications, 2000
For the superefficient point set \(SE(A,K)\) (Borwein/Zhung) in locally convex topological vector spaces it is shown: 1. \(SE(A,K) = \cup_{f \in \operatorname {int} K^*} \{ y \in A: f(y)= \operatorname {inf} \{ f(x): x \in A \} \}\) when \(A\) is \(K\)-convex, 2. \( SE(A,K)\) is connected when \(A\) is \(K\)-convex and weakly compact.
Chen Ling, Y. D. Hu
openaire   +2 more sources

Locally Convex Topological Vector Spaces

open access: closed, 1999
Since convexity will play a central role in all following chapters, the scalar field K over which vector spaces are defined is from now on assumed to be the real field R or the complex field C, unless the contrary is expressly stated. In most definitions and results (for example, the Hahn-Banach theorem) we shall not find it necessary to distinguish ...
M. P. Wolff, H. H. Schaefer
openaire   +3 more sources

New definition of locally convex L-topological vector spaces

open access: closedFuzzy Sets and Systems, 2009
In this paper, a new definition of locally convex L-topological vector spaces is given. The relationship between this new definition and the previous definition of locally convex L-topological vector spaces given by Yan and Fang in 1999 is investigated. Moreover, the concept of generalized L-fuzzy semi-norm is introduced.
Hua-Peng Zhang, Jin-xuan Fang
openaire   +3 more sources

The space of vector‐valued integrable functions under certain locally convex topologies

Mathematische Nachrichten, 2012
AbstractLet E be a Banach space, Ω a locally compact space, and μ a positive Radon measure on Ω. In this paper, through extending to Lebesgue‐Bochner spaces, we show that the topology β1 introduced by Singh is a type of strict topology. We then investigate various properties of this locally convex topology.
S. Maghsoudi
openaire   +3 more sources

On the Density of Henig Efficient Points in Locally Convex Topological Vector Spaces

open access: closedJournal of Optimization Theory and Applications, 2014
This paper presents a generalization of the Arrow, Barankin and Blackwell theorem to locally convex Hausdorff topological vector spaces. Our main result relaxes the requirement that the objective set be compact; we show asymptotic compactness is sufficient, provided the asymptotic cone of the objective set can be separated from the ordering cone by a ...
Robert K. Goodrich, Joseph Newhall
openaire   +3 more sources

Home - About - Disclaimer - Privacy