English

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

Algebraic Geometry 2014-06-10 v1

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.

Keywords

Cite

@article{arxiv.1406.2196,
  title  = {Effective curves on $\overline{M}_{0,n}$ from group actions},
  author = {Han-Bom Moon and David Swinarski},
  journal= {arXiv preprint arXiv:1406.2196},
  year   = {2014}
}

Comments

32 pages

R2 v1 2026-06-22T04:34:03.257Z