Some properties of semi-continuous functions and quasi-uniform spaces
J. Ferrer, V. Gregori and I. L. Reilly
Abstract
This paper approaches the problem of characterizing the
topological spaces that
admit a unique compatible quasi-uniform structure by means of semi-continuous
functions. The desired result is achieved by relating properties of the
semi-continuous quasi-uniformity with a new characterization of hereditarily
compact spaces via lower semi-continuous functions.