GIT Compactifications of $M_{0,n}$ from Conics
Algebraic Geometry
2015-01-13 v3
Abstract
We study GIT quotients parametrizing n-pointed conics that generalize the GIT quotients . Our main result is that admits a morphism to each such GIT quotient, analogous to the well-known result of Kapranov for the simpler quotients. Moreover, these morphisms factor through Hassett's moduli spaces of weighted pointed rational curves, where the weight data comes from the GIT linearization data.
Keywords
Cite
@article{arxiv.1001.2830,
title = {GIT Compactifications of $M_{0,n}$ from Conics},
author = {Noah Giansiracusa and Matthew Simpson},
journal= {arXiv preprint arXiv:1001.2830},
year = {2015}
}
Comments
15 pages, 5 figures; corrected inequality in Lemma 5.1, Int. Math. Res. Notices Vol. 2010