Chen-Ruan cohomology of M_{1,n} and \bar{M}_{1,n}

Details Chen-Ruan cohomology of M_{1,n} and \bar{M}_{1,n} Chen-Ruan cohomology of M_{1,n} and \bar{M}_{1,n}

2008-10-15

arxiv.org/abs/0810.2744v2

Mathematics

Algebraic Geometry

40 pages, 3 figures, part of the author PHD Thesis. Submitted

Scientific paper

In this work we compute the Chen--Ruan cohomology and the stringy Chow ring
of the moduli spaces of smooth and stable $n$-pointed curves of genus 1. We
suggest a definition for an Orbifold Tautological Ring in genus 1, which is
both a subring of the Chen--Ruan cohomology and of the stringy Chow ring.

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