On the Order Hereditary Closure Preserving Sum Theorem

The main purpose of this paper is to prove the following two theorems, an order hereditary closure preserving sum theorem and an hereditary theorem: (1) If a topological property P satisfies (Σ′) and is closed hereditary, and if V is an order hereditary closure preserving open cover of X and each...

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Bibliographic Details
Main Authors: Jianhua Gong, Ivan L. Reilly
Format: Article
Language:English
Published: Universitat Politècnica de València 2007-10-01
Series:Applied General Topology
Subjects:
Online Access:http://polipapers.upv.es/index.php/AGT/article/view/1892