Results 31 to 40 of about 1,076,084 (287)

A uniform approach to normality for topological spaces

open access: yesApplied General Topology, 2016
$(\lambda, \mu)$-regularity and $(\lambda, \mu)$-normality are defined for generalized topological spaces. Several variants of normality existing in the literature turn out to be particular cases of $(\lambda, \mu)$-normality. Uryshon's lemma and Titze's
Ankit Gupta, Ratna Dev Sarma
doaj   +1 more source

Generality of topological inflation [PDF]

open access: yesClassical and Quantum Gravity, 2003
Many authors claimed that a large initial inhomogeneity prevents the onset of inflation and therefore inflation takes place only if the scalar field is homogeneous or appropriately chosen over the horizon scale. We show that those arguments do not apply to topological inflation.
openaire   +3 more sources

Some Properties of Generalized Topologies in GTSs

open access: yesCommunications in Advanced Mathematical Sciences, 2020
In this article, we introduce one new generalized topology and investigate its properties in a generalized topological space. Also, we give various properties of some generalized topologies defined in a generalized topological space.
Vadakasi Subramanian
doaj   +1 more source

Generalized open sets of Minkowski space [PDF]

open access: yesMathematica Moravica, 2015
We consider the Euclidean topology and s-topology on n-dimensional Minkowski space and investigate the interior and closure of the space cone and perforated space cone with respect to these topologies.
Ersoy Soley, Bilgin Merve, Ince Ibrahim
doaj  

Topological gyrogroups: Generalization of topological groups

open access: yesTopology and its Applications, 2017
The author studies topological left automorphic left Bol loops. In the terminology of \textit{A. A. Ungar} [Analytic hyperbolic geometry and Albert Einstein's special theory of relativity. Hackensack, NJ: World Scientific (2008; Zbl 1147.83004)] left automorphic left Bol loops are called gyrogroups.
openaire   +1 more source

New generalized closure operators induced by local functions via ideals [PDF]

open access: yesJournal of Mahani Mathematical Research
This work aims to introduce and examine four new operators based on the topological structure “ideal” and the notion of “generalized” generating two generalized ideal topological spaces.
Salah El-Din Abass   +3 more
doaj   +1 more source

Continuous generalized metric spaces

open access: yes四川大学学报. 自然科学版, 2020
Continuous generalized metric spaces are introduced and investigated in this paper. It is shown that for such spaces, the generalized Scott topology is equal to c-Scott topology, and that a non-expansive map between such spaces is Yoneda continuous if ...
Yu Jun-Che
doaj  

Introduction to generalized topological spaces

open access: yesApplied General Topology, 2011
We introduce the notion of generalized topological space (gt-space). Generalized topology of gt-space has the structure of frame and is closed under arbitrary unions and finite intersections modulo small subsets. The family of small subsets of a gt-space
Irina Zvina
doaj   +1 more source

On Generic Topological Embeddings

open access: yesResults in Mathematics
Abstract We show that an embedding of a fixed 0-dimensional compact space K into the Čech–Stone remainder $$\omega ^*$$ ω ∗ as a nowhere dense P-set is the unique generic ...
Wiesław Kubiś   +2 more
openaire   +3 more sources

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