Results 11 to 20 of about 383 (157)

Alexandroff duplicate and βκ [PDF]

open access: yesApplied General Topology, 2022
We discuss spaces and the Alexandroff duplicates of those spaces that admit a Č-S embedding into the Čech-Stone compactification of a discrete space.
Andrzej A Szymanski
doaj   +2 more sources

The Alexandroff Duplicate and its subspaces [PDF]

open access: yesApplied General Topology, 2007
We study some topological properties of the class of the Alexandroff duplicates and their subspaces. We give a characterization of metrizability and Lindel¨of properties of subspaces of the Alexandroff duplicate.
Agata Caserta, Stephen Watson
doaj   +2 more sources

Uniformizable functional Alexandroff spaces

open access: yes, 2023
In the following text we show that the Alexandroff space $X$ is uniformizable if and only if the collection of all smallest neighbourhoods is a partition of $X$. Moreover the Alexandroff space $X$ is uniformizable and functional Alexandroff ($k-$primal) if and only if the collection of all smallest neighbourhoods is a partition of $X$ into its finite ...
Ayatollah Zadeh Shirazi, Fatemah   +3 more
openaire   +3 more sources

On the triviality of flows in Alexandroff spaces [PDF]

open access: yes, 2022
We prove that the unique possible flow in an Alexandroff T0-space is the trivial one. On the way of motivation, we relate Alexandroff spaces with topological hyperspaces.
Chocano Feito, Pedro José   +2 more
core   +5 more sources

The Alexandroff property and the preservation of strong uniform continuity [PDF]

open access: yesApplied General Topology, 2010
In this paper we extend the theory of strong uniform continuity and strong uniform convergence, developed in the setting of metric spaces in, to the uniform space setting, where again the notion of shields plays a key role.
Gerald Beer
doaj   +2 more sources

On Some Properties of Whyburn Spaces. [PDF]

open access: yesComput Intell Neurosci, 2022
Computational Intelligence and Neuroscience, Volume 2022, Issue 1, 2022.
Mhemdi A, Lazaar S, Dourari K.
europepmc   +2 more sources

Statistical Convergence in Function Spaces [PDF]

open access: yesAbstract and Applied Analysis, 2011
We study statistical versions of several classical kinds of convergence of sequences of functions between metric spaces (Dini, Arzelà, and Alexandroff) in different function spaces.
Agata Caserta   +2 more
doaj   +2 more sources

On some non-Archimedean spaces of Alexandroff and Urysohn

open access: yesTopology and its Applications, 1999
In [Math. Ann. 98, 89-106 (1927; JFM 53.0559.01)] Alexandroff and Urysohn provided characterizations of the spaces \({}^\omega\omega\) (the irrationals), its subspace \(\bigcup_{n\in\omega}^\omega n\) and the complement of a point in the Cantor set -- these characterizations were in the spirit of \textit{L. E. J.
Nyikos, Peter J.
openaire   +2 more sources

Necessary or sufficient condition for Alexandroff topological spaces to be cordial graphic

open access: yesResults in Control and Optimization
In this paper, we explore the property of being a cordial graphic and establish that it corresponds to an Alexandroff topological space. We analyze how the characteristics of cordial graphs align with the principles of Alexandroff topology and provide ...
A. Divya, K. Ramya, D. Sasikala
doaj   +2 more sources

The Centre of the Spaces of Banach Lattice-Valued Continuous Functions on the Generalized Alexandroff Duplicate [PDF]

open access: yesAbstract and Applied Analysis, 2011
We characterize the centre of the Banach lattice of Banach lattice 𝐸-valued continuous functions on the Alexandroff duplicate of a compact Hausdorff space 𝐾 in terms of the centre of 𝐶(𝐾,𝐸), the space of 𝐸-valued continuous functions on 𝐾.
Faruk Polat
doaj   +2 more sources

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