Results 21 to 30 of about 4,438,790 (210)

Tachyons in compact spaces [PDF]

Journal of High Energy Physics, 2005
We discuss condensations of closed string tachyons localized in compact spaces. Time evolution of an on-shell condensation is naturally related to the worldsheet RG flow. Some explicit tachyonic compactifications of Type II string theory is considered, and some of them are shown to decay into supersymmetric theories known as the little string theories.
openaire   +2 more sources

A weakly Stegall space that is not a Stegall space [PDF]

, 2002
A topological space X is said to belong to the class of Stegall (weakly Stegall) spaces if for every Baire (complete metric) space B and minimal usco φ : B2X, φ is single-valued at some point of B.
Moors, Warren B., Sivajah Somasundaram, Somasundaram, Sivajah, Warren B. Moors   +3 more
core   +1 more source

On the Čech-Completeness of the Space of τ-Smooth Idempotent Probability Measures

Axioms
For the set I(X) of probability measures on a compact Hausdorff space X, we propose a new way to introduce the topology by using the open subsets of the space X.
Ljubiša D. R. Kočinac, Adilbek A. Zaitov, Muzaffar R. Eshimbetov   +2 more
doaj   +1 more source

Almost periodic mild solutions for stochastic delay functional. differential equations driven by a fractional Brownian motion [PDF]

Romanian Journal of Mathematics and Computer Science, 2014
In this paper we investigate the existence and stability of quadratic-mean almost periodic mild solutions to stochastic delay functional differential equations driven by fractional Brownian motion with Hurst parameter H > 1/2 , under some suitable ...
Toufik Guendouzi,, Khadem Mehdi
doaj  

Compact manifolds with computable boundaries [PDF]

Logical Methods in Computer Science, 2013
We investigate conditions under which a co-computably enumerable closed set in a computable metric space is computable and prove that in each locally computable computable metric space each co-computably enumerable compact manifold with computable ...
Zvonko Iljazovic
doaj   +1 more source

On Compactness in Function Spaces [PDF]

Proceedings of the American Mathematical Society, 1972
There are shown some implications from pseudocompactness to compactness or sequential compactness. The latter, sequential compactness, is obtained via metrization.
openaire   +3 more sources

Extension of Compact Operators from DF-spaces to C(K) spaces

Applied General Topology, 2006
It is proved that every compact operator from a DF-space, closed subspace of another DF-space, into the space C(K) of continuous functions on a compact Hausdorff space K can be extended to a compact operator of the total DF-space.
Fernando Garibay Bonales, Rigoberto Vera Mendoza   +1 more
doaj   +1 more source

(In)homogeneous invariant compact convex sets of probability measures

Pracì Mìžnarodnogo Geometričnogo Centru, 2020
It is proved that for any iterated function system of contractions on a complete metric space there exists an invariant compact convex sets of probability measures of compact support on this space.
Natalia Mazurenko, Mykhailo Zarichnyi
doaj   +1 more source

Some remarks on Radon–Nikodym compact spaces

, 2002
The class of quasi Radon-Nikodým compact spaces is introduced. We prove that this class is closed under countable products and continuous images. It includes the Radon-Nikodým compact spaces.
Arvanitakis, A.D., Arvanitakis, A
core   +1 more source

On Some Results in Fuzzy Length Space

Al-Mustansiriyah Journal of Science, 2020
In this paper, depending on the notion of fuzzy length space we define the Cartesian product of two fuzzy length spaces. we proved that the Cartesian product of two fuzzy length spaces is a fuzzy length space.
Raghad I. Sabri, Mayada Nazar, Mohammed Ali   +2 more
doaj   +1 more source