EuDML | Browse

Page 1

Displaying 1 – 4 of 4

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

Jinjin Li, Shou Lin (2006)

Czechoslovak Mathematical Journal

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 $m k$ -systems. As applications, some new characterizations of quotients or closed images of locally compact metric spaces are given by means of $m k$ -systems.

Kelley's specialization of Tychonoff's Theorem is equivalent to the Boolean Prime Ideal Theorem

Eric Schechter (2006)

Fundamenta Mathematicae

The principle that "any product of cofinite topologies is compact" is equivalent (without appealing to the Axiom of Choice) to the Boolean Prime Ideal Theorem.

Kompakte, vier-dimensionale projektive Ebenen mit 8-dimensionaler Kollineationsgruppe.

Helmut Salzmann (1973)

Mathematische Zeitschrift

K-space function spaces.

McCoy, R.A. (1980)

International Journal of Mathematics and Mathematical Sciences

Displaying 1 – 4 of 4

k -systems, k -networks and k -covers

Kelley's specialization of Tychonoff's Theorem is equivalent to the Boolean Prime Ideal Theorem

Kompakte, vier-dimensionale projektive Ebenen mit 8-dimensionaler Kollineationsgruppe.

K-space function spaces.

Currently displaying 1 – 4 of 4

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