Results 31 to 40 of about 287,361 (225)

Fixed-Point Theory on a Frechet Topological Vector Space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We establish some versions of fixed-point theorem in a Frechet topological vector space E. The main result is that every map A=BC (where B is a continuous map and C is a continuous linear weakly compact operator) from a closed convex subset of a Frechet ...
Afif Ben Amar   +2 more
doaj   +1 more source

A Note on the Generalized Nonlinear Vector Variational-Like Inequality Problem

open access: yesJournal of Function Spaces, 2021
In this paper, we discuss two variants of the generalized nonlinear vector variational-like inequality problem. We provide their solutions by adopting topological approach.
Ankit Gupta   +4 more
doaj   +1 more source

On the symmetries of BF models and their relation with gravity [PDF]

open access: yes, 2001
The perturbative finiteness of various topological models (e.g. BF models) has its origin in an extra symmetry of the gauge-fixed action, the so-called vector supersymmetry.
A. Boresch   +25 more
core   +3 more sources

On the Relationship between Primal/Dual Cell Complexes of the Cell Method and Primal/Dual Vector Spaces: an Application to the Cantilever Elastic Beam with Elastic Inclusion

open access: yesCurved and Layered Structures, 2019
The Cell Method (CM) is an algebraic numerical method based on the use of global variables: the configuration, source and energetic global variables. The configuration variables with their topological equations, on the one hand, and the source variables ...
Ferretti Elena
doaj   +1 more source

Weak Darboux property and transitivity of linear mappings on topological vector spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
It is shown that every linear mapping on topological vector spaces always has weak Darboux property, therefore, it is continuous if and only if it is transitive.
V.K. Maslyuchenko, V.V. Nesterenko
doaj   +1 more source

Menger probabilistic normed space is a category topological vector space [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2016
In this paper, we formalize the Menger probabilistic normed space as a category in which its objects are the Menger probabilistic normed spaces and its morphisms are fuzzy continuous operators.
Ildar Sadeqi, Farnaz Yaqub Azari
doaj  

Nonstratifiability of topological vector spaces

open access: yesTopology and its Applications, 1998
A subspace \(Y\) of a topological space \(X\) is said to be \(K_{1}\) embedded if there exists a map \(\varphi :\mathcal{T}_{Y}\rightarrow \mathcal{T}_{X}\) such that for any \(U,V\in \mathcal{T}_{Y}\), if \(\varphi(U)\cap Y=U\) and \( \varphi (U)\cap \varphi (Y)\neq \emptyset\) then \(U\cap V\neq \emptyset\).
openaire   +3 more sources

A characterization of singular endomorphisms of a barrelled Pták space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
The concept of topological divisor of zero has been extended to endomorphisms of a locally convex topological vector space (LCTVS). A characterization of singular endomorphisms, similar to that of Yood [1], is obtained for endomorphisms of a barrelled ...
Damir Franekić
doaj   +1 more source

Photonic helicoid-like surface states in chiral metamaterials

open access: yesScientific Reports, 2023
We investigate the photonic topological phases in chiral metamaterials characterized by the magnetoelectric tensors with diagonal chirality components. The underlying medium is considered a photonic analogue of the topological semimetal featured with a ...
Ruey-Lin Chern
doaj   +1 more source

Non Abelian TQFT and scattering of self dual field configuration

open access: yes, 1999
A non-abelian topological quantum field theory describing the scattering of self-dual field configurations over topologically non-trivial Riemann surfaces, arising from the reduction of 4-dim self-dual Yang-Mills fields, is introduced.
A. Mendoza   +27 more
core   +1 more source

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