Results 51 to 60 of about 287,361 (225)

Topological Quasilinear Spaces

open access: yesAbstract and Applied Analysis, 2012
We introduce, in this work, the notion of topological quasilinear spaces as a generalization of the notion of normed quasilinear spaces defined by Aseev (1986). He introduced a kind of the concept of a quasilinear spaces both including a classical linear
Yılmaz Yılmaz   +2 more
doaj   +1 more source

Unitary representability of free abelian topological groups

open access: yesApplied General Topology, 2008
For every Tikhonov space X the free abelian topological group A(X) and the free locally convex vector space L(X) admit a topologically faithful unitary representation. For compact spaces X this is due to Jorge Galindo.
Vladimir V. Uspenskij
doaj   +1 more source

Open source vector field topology

open access: yesSoftwareX, 2021
A myriad of physical phenomena, such as fluid flows, magnetic fields, and population dynamics are described by vector fields. More often than not, vector fields are complex and their analysis is challenging.Vector field topology is a powerful analysis ...
Roxana Bujack   +3 more
doaj   +1 more source

Euler-Bessel and Euler-Fourier Transforms

open access: yes, 2010
We consider a topological integral transform of Bessel (concentric isospectral sets) type and Fourier (hyperplane isospectral sets) type, using the Euler characteristic as a measure.
Baryshnikov Y   +9 more
core   +2 more sources

Free topological vector spaces

open access: yesTopology and its Applications, 2017
We define and study the free topological vector space $\mathbb{V}(X)$ over a Tychonoff space $X$. We prove that $\mathbb{V}(X)$ is a $k_ $-space if and only if $X$ is a $k_ $-space. If $X$ is infinite, then $\mathbb{V}(X)$ contains a closed vector subspace which is topologically isomorphic to $\mathbb{V}(\mathbb{N})$. It is proved that if $X$ is a $k$
Saak Gabriyelyan   +2 more
openaire   +3 more sources

Mazur spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
A Mazur space is a locally convex topological vector space X such that every fϵXs is continuous where Xs is the set of sequentially continuous linear functionals on X; Xs is studied when X is of the form C(H), H a topological space, and when X is the ...
Albert Wilansky
doaj   +1 more source

Twisted Hilbert spaces of 3d supersymmetric gauge theories

open access: yesJournal of High Energy Physics, 2018
We study aspects of 3d N=2 $$ \mathcal{N}=2 $$ supersymmetric gauge theories on the product of a line and a Riemann surface. Performing a topological twist along the Riemann surface leads to an effective supersymmetric quantum mechanics on the line.
Mathew Bullimore, Andrea Ferrari
doaj   +1 more source

String In Topological Vector Space [PDF]

open access: yes, 2013
Introducing the concept of string resulted in a vector space one important step for further Functional Analysis. This made possible the availability of the most important results of this field in other classes spaces.
Dorina GUXHOLLI, Valentina SHEHU
core  

The dual space of β(Γ)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
The space of Boehmians with Δ-convergence is a complete topological vector space in which the topology is induced by an invariant metric. We show that the dual space of the space of periodic Boehmians can be identified with the class of trigonometric ...
Dennis Nemzer
doaj   +1 more source

Observation of optical vortices in momentum space

open access: yes, 2017
Vortex, the winding of a vector field in two dimensions, has its core the field singularity and its topological charge defined by the quantized winding angle of the vector field. Vortices are one of the most fundamental topological excitations in nature,
Ang Chen   +9 more
core   +1 more source

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