Hassan K. Alzoghdani; Aghziel.E.M. Jellala; Saliema .F.R.Hussain
(جامعة سرت - Sirte University, 2014-12-01)
In 1985 Arhangl' Skii introduced different types of cleavability as following:A topological space X is said to be cleavable over a class of spaces P if for ACX there exists a continuous mapping ƒ: X → Y € P such that ƒ-1ƒ ...