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International Journal of Mathematics and Mathematical Sciences 
Volume 14 (1991), Issue 1, Pages 203-204
doi:10.1155/S0161171291000194

Research notes

Properties of α-expansions of topologies

David A. Rose

Department of Mathematics, East Central University, Ada 74820, OK, USA

Received 25 August 1989; Revised 2 February 1990

Abstract

The results of O. Njåstad for α-topologies together with the results of P. L. Sharma for anti-compact perfect Hausdorff spaces are combined to produce several counterexamples in one space.