Results 21 to 30 of about 574,732 (350)

On some generalization of order cancellation law for subsets of topological vector space

open access: yesMoroccan Journal of Pure and Applied Analysis, 2023
In this paper we generalize a result of R. Urbański from paper [7] which states that for subsets A, B, C of topological vector space X the following implication holds A+B⊂B+C⇒A⊂CA + B \subset B + C \Rightarrow A \subset C provided that B is bounded and
Przybycie Hubert
doaj   +1 more source

Countable Fuzzy Topological Space and Countable Fuzzy Topological Vector Space

open access: yesJournal of Mathematical and Fundamental Sciences, 2015
This paper deals with countable fuzzy topological spaces, a generalization of the notion of fuzzy topological spaces. A collection of fuzzy sets F on a universe X forms a countable fuzzy topology if in the definition of a fuzzy topology, the condition of
Apu Kumar Saha, Debasish Bhattacharya
doaj   +1 more source

Topological phases and bulk-edge correspondence of magnetized cold plasmas

open access: yesNature Communications, 2021
Magnetized plasma can be regarded as topological matter. Here the authors identify a necessary and sufficient condition for the existence of topological edge mode and find that cold magnetized plasma has ten topological phases in the plasma frequency ...
Yichen Fu, Hong Qin
doaj   +1 more source

A Note on the Topology of Space-time in Special Relativity [PDF]

open access: yes, 2003
We show that a topology can be defined in the four dimensional space-time of special relativity so as to obtain a topological semigroup for time. The Minkowski 4-vector character of space-time elements as well as the key properties of special relativity ...
Bohm A   +5 more
core   +3 more sources

Symmetry content of a generalized p-form model of Schwarz-type in d dimensions [PDF]

open access: yes, 2000
We derive the vector supersymmetry and the \L-symmetry transformations for the fields of a generalized topological $p$-form model of Schwarz-type in $d$ space-time dimensions.Comment: 7 ...
Abud   +19 more
core   +3 more sources

Singular dimensions of the N=2 superconformal algebras. I [PDF]

open access: yes, 1998
Verma modules of superconfomal algebras can have singular vector spaces with dimensions greater than 1. Following a method developed for the Virasoro algebra by Kent, we introduce the concept of adapted orderings on superconformal algebras.
Doerrzapf, Matthias   +1 more
core   +3 more sources

The partition bundle of type A_{N-1} (2, 0) theory [PDF]

open access: yes, 2010
Six-dimensional (2, 0) theory can be defined on a large class of six-manifolds endowed with some additional topological and geometric data (i.e. an orientation, a spin structure, a conformal structure, and an R-symmetry bundle with connection).
AS Schwarz   +18 more
core   +2 more sources

Mapping the design space of photonic topological states via deep learning. [PDF]

open access: yesOptics Express, 2020
Topological states in photonics offer novel prospects for guiding and manipulating photons and facilitate the development of modern optical components for a variety of applications.
Robin Singh   +2 more
semanticscholar   +1 more source

Equivalence of weak and strong modes of measures on topological vector spaces [PDF]

open access: yesInverse Problems, 2017
A strong mode of a probability measure on a normed space X can be defined as a point u such that the mass of the ball centred at u uniformly dominates the mass of all other balls in the small-radius limit.
H. Lie, T. Sullivan
semanticscholar   +1 more source

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