Results 81 to 90 of about 5,897,592 (221)

Movable categories

open access: yes, 2001
The notion of movability for metrizable compacts was introduced by K.Borsuk $[1]$. In this paper we define the notion of movable category and prove that the movability of a topological space $X$ coincides with the movability of a suitable category, which
Gevorgyan, P. S.
core  

Separation axioms in topological preordered spaces and the existence of continuous order-preserving functions

open access: yesApplied General Topology, 2000
We characterize the existence of a real continuous order-preserving function on a topological preordered space, under the hypotheses that the topological space is normal and the preorder satisfies a strong continuity assumption, called IC-continuity ...
Gianni Bosi, R. Isler
doaj   +1 more source

Study of Statistical Convergence of Triple Sequences in a Topological Space

open access: yesRevista Ingeniería, Matemáticas y Ciencias de la Información
In this paper, we introduce statistical convergence of triple sequences which are defined in a topological space. Various results on statistically convergent triple sequences are produced by using the notion of triple natural density operator.
Birojit Das   +3 more
doaj   +1 more source

Semi-h-Open Sets and Semi-h-Continuity in Topological Spaces [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
In this study, we generalized two known open sets called semi-open and h-open sets to find a new type called semi-h-open set in topological space We have presented the relationship of several famous open sets to this set.
Barah Sulaiman
doaj   +1 more source

On the Homomorphisms of the Lie Groups and

open access: yesAbstract and Applied Analysis, 2013
We first construct all the homomorphisms from the Heisenberg group to the 3-sphere. Also, defining a topology on these homomorphisms, we regard the set of these homomorphisms as a topological space.
Fatma Özdemir, Hasan Özekes
doaj   +1 more source

Finite topological spaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1966
openaire   +1 more source

On topological groups with a weak q-point

open access: yesApplied General Topology
In this article, firstly, we introduce the concepts of weak q-spaces and weak sq-spaces. Some properties of these spaces are discussed. Secondly, we study weak q-spaces and weak sq-spaces in topological groups in terms of preimages of submetrizable ...
Hai-Hua Lin, Li-Hong Xie
doaj   +1 more source

Ng#-Irresolvable and Strongly Ng#-Irresolvable Spaces in Neutrosophic Topological Spaces

open access: yesNeutrosophic Sets and Systems
The notion of breaking down a topological space into smaller, disjoint subsets is the basis for the topological concepts of ‘resolvable space’ and ‘irresolvable space’.
Martina Jency J.   +2 more
doaj   +1 more source

Diversifying molecular and topological space via a supramolecular solid-state synthesis: a purely organic mok net sustained by hydrogen bonds. [PDF]

open access: yesIUCrJ, 2019
Oburn SM   +6 more
europepmc   +1 more source

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