Cammaroto, F.; Nordo, G. On Urysohn, almost regular and semiregular functions. (English) Zbl 0822.54007 Filomat 8, 71-80 (1994). The authors define and study \(T_0\)-, \(T_1\)-, Hausdorff, etc. maps. For example, a map \(f: X\to Y\) is Hausdorff iff whenever \(x\neq y\) and \(f(x)= f(y)\) the points \(x\) and \(y\) have disjoint neighbourhoods. The obvious relations between these notions are established. Reviewer: K. P. Hart (Delft) Cited in 1 ReviewCited in 2 Documents MSC: 54C10 Special maps on topological spaces (open, closed, perfect, etc.) 54A99 Generalities in topology Keywords:Hausdorff map; almost regular map; semiregular map PDFBibTeX XMLCite \textit{F. Cammaroto} and \textit{G. Nordo}, Filomat 8, 71--80 (1994; Zbl 0822.54007)