Charles University in Prague, Faculty of Mathematics and Physics
Publication date
01/01/2001
Field of study
summary:We show that if \Cal A is an uncountable AD (almost disjoint) family of subsets of ω then the space \Psi(\Cal A) does not admit a continuous selection; moreover, if \Cal A is maximal then \Psi(\Cal A) does not even admit a continuous selection on pairs, answering thus questions of T. Nogura