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Start Over Subject point-countable families

1. $k$-systems, $k$-networks and $k$-covers

Creator:
Li, Jinjin and Lin, Shou
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
$k$-systems, $k$-networks, $k$-covers, $k$-spaces, point-countable families, and hereditarily closure-preserving families
Language:
English
Description:
The concepts of $k$-systems, $k$-networks and $k$-covers were defined by A. Arhangel’skiǐ in 1964, P. O’Meara in 1971 and R. McCoy, I. Ntantu in 1985, respectively. In this paper the relationships among $k$-systems, $k$-networks and $k$-covers are further discussed and are established by $mk$-systems. As applications, some new characterizations of quotients or closed images of locally compact metric spaces are given by means of $mk$-systems.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public