Subject:
Question
From:
Johannes Huebschmann <Johannes.Huebschmann@math.univ-lille1.fr>
Date:
Wed, 4 May 2005 18:38:38 +0200 (CEST)
To:
dmd1@lehigh.edu
CC:
Johannes Huebschmann <Johannes.Huebschmann@math.univ-lille1.fr>, Matthias.Schmidt@itp.uni-leipzig.de

Let f be a surjective continuous map from a closed n-disk onto a space X
whose restriction to the interior of the disk is a homeomorphism onto its image and which has the property that the pre-image of any point of X is
a contractible space. Does this imply that f is a homeomorphism?

Regards

Johannes Huebschmann


HUEBSCHMANN Johannes
Professeur de Mathematiques
USTL, UFR de Mathematiques
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