Chow ring of the stack of plane nodal curves
arXiv:2405.11943
Abstract
We compute the rational Chow ring of the moduli stack of planar nodal curves of fixed degree and express it in terms of tautological classes. Along the way, we extend Vial's results on Chow groups of Brauer-Severi varieties to -equivariant settings.
Appendix by Alexis Aumonier. 26 pages, comments welcome!