There Are No Essential Phantom Mappings from 1-dimensional CW-complexes
Sibe Mardešić · Bulletin of the Polish Academy of Sciences Mathematics · 2013
A phantom mapping $h$ from a space $Z$ to a space $Y$ is a mapping whose restrictions to compact subsets are homotopic to constant mappings. If the mapping $h$ is not homotopic to a constant mapping, one speaks of an essential phantom mapping. The definit