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arXiv · 1406.2196

Effective curves on $\overline{M}_{0,n}$ from group actions

Han-Bom Moon·David Swinarski
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Abstract

We study new effective curve classes on the moduli space of stable pointed rational curves given by the fixed loci of subgroups of the permutation group action. We compute their numerical classes and provide a strategy for writing them as effective linear combinations of F-curves, using Losev-Manin spaces and toric degeneration of curve classes.

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Han-Bom Moon, David Swinarski. 2014-06-09. Effective curves on $\overline{M}_{0,n}$ from group actions. https://arxiv.org/abs/1406.2196

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