On Finite-Dimensional Maps II

H. Murat Tuncali, Vesko Valov

Published 2002-02-12, updated 2002-11-21Version 4

Let $f\colon X\to Y$ be a perfect $n$-dimensional surjection of paracompact spaces with $Y$ being a $C$-space. We prove that, for any $m\geq n+1$, almost all (in the sense of Baire category) maps $g$ from $X$ into the $m$-dimensional cube have the following property: $g(f^{-1}(y))$ is at most $n$-dimensional for every $y\in Y$.