Mathematics – Geometric Topology
Scientific paper
2009-04-30
Algebr. Geom. Topol. 6 (2006) 1669-1676
Mathematics
Geometric Topology
This is the version published by Algebraic & Geometric Topology on 14 October 2006
Scientific paper
10.2140/agt.2006.6.1669
In this note we construct a closed 4-manifold having torsion-free fundamental
group and whose universal covering is of macroscopic dimension 3. This yields a
counterexample to Gromov's conjecture about the falling of macroscopic
dimension.
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