Mathematics – Geometric Topology
Scientific paper
2007-07-29
Mathematics
Geometric Topology
11 pages, no figures
Scientific paper
In this note, we fill in a gap in the literature by proving that the
Teichmueller modular groups (mapping class groups) are not Poincare duality
groups and the complexes of curves of surfaces have infinite homotopy type
(i.e. are not homotopy equivalent to a finite CW-complex).
Ivanov Nikolai V.
Ji Lizhen
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