Abstract:
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 (A) = A, ƒ(X)=Y.We study the case :If P is a class of topological spaces with certain properties and if X is cleavable over P then X € P
