Rational extensions of C(X) and semicontinuous functions
CONTENTS0. Introduction...............................................................51. Notations and basic facts .........................................62. Semicontinuous functions.........................................93. Lattices or normal semicontinuous functions...........124. Q(∧)C(X).................................................................165. Q(∧)C(X) versus Q(∨)C(X)......................................216. Q(·) versus Q(∧) and Q(∨)......................................227....