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Categorical and Cardinal Properties of Hyperspaces with a Finite Number of Components.

Authors :
Beshimov, R. B.
Mamadaliev, N. K.
Eshtemirova, Sh. Kh.
Source :
Journal of Mathematical Sciences. Mar2020, Vol. 245 Issue 3, p390-397. 8p.
Publication Year :
2020

Abstract

In this paper, we examine categorical and cardinal properties of hyperspaces with finite number of components. We prove that the functor Cn : Comp → Comp is not normal, i.e., it does not preserve epimorphisms of continuous mappings. We also discuss the density, the caliber, and the Shanin number of the space Cn(X). [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10723374
Volume :
245
Issue :
3
Database :
Academic Search Index
Journal :
Journal of Mathematical Sciences
Publication Type :
Academic Journal
Accession number :
143725293
Full Text :
https://doi.org/10.1007/s10958-020-04701-8