Article ID Journal Published Year Pages File Type
4660042 Topology and its Applications 2008 6 Pages PDF
Abstract

For a given set X, the set F(X) of all maps from X to X forms a semigroup under composition. A subsemigroup S of F(X) is said to be saturated if for each x∈X there exists a set Ox⊆X with x∈Ox such that . It is shown that there exists a one-to-one correspondence between principal topologies on X and saturated subsemigroups of F(X). Some properties of principal topologies on X and the corresponding properties of their associated saturated subsemigroups of F(X) are discussed.

Related Topics
Physical Sciences and Engineering Mathematics Geometry and Topology