Cohomology Rings of Moduli of Point Configurations on the Projective Line
arXiv:1611.01092
Abstract
We describe the Chow rings of moduli spaces of ordered configurations of points on the projective line for arbitrary (sufficiently generic) stabilities. As an application, we exhibit such a moduli space admitting two small desingularizations with non-isomorphic cohomology rings.
arXiv comment14 pages