A note on the characteristic classes of negatively curved manifolds

Details A note on the characteristic classes of negatively curved manifolds A note on the characteristic classes of negatively curved manifolds

2004-10-05

arxiv.org/abs/math/0410125v1

Expo. Math. 25 (2007), pgs. 21-35

Mathematics

Geometric Topology

11 pages

Scientific paper

We give conceptual proofs of some well known results concerning compact non-positively curved locally symmetric spaces. We discuss vanishing and non-vanishing of Pontrjagin numbers and Euler characteristics for these locally symmetric spaces. We also establish vanishing results for Stiefel-Whitney numbers of (finite covers of) the Gromov-Thurston examples of negatively curved manifolds. We mention some geometric corollaries: the MinVol question, a lower bound for degrees of covers having tangential maps to the non-negatively curved duals, and estimates for the complexity of some representations of certain uniform lattices.

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