Non-trivial 1-classes in the homology of the real moduli spaces M-bar_{0,n} and related structures

Details Non-trivial 1-classes in the homology of the real moduli spaces M-bar_{0,n} and related structures Non-trivial 1-classes in the homology of the real moduli spaces M-bar_{0,n} and related structures

2002-08-13

arxiv.org/abs/math/0208095v1

Mathematics

Algebraic Topology

20 pages, 7 figures

Scientific paper

We give lower bounds for the rank of the first homology group of the real
points of the Deligne-Mumford-Knudsen compactification of stable n-pointed
curves of genus 0,which coincides with the Chow quotient (RP^1)^n//PGL(2,R).The
study has connections with spectral geometry and combinatorics.

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