Abstract
We give a presentation for the stack of rational curves with at most 1 node as the quotient by GL3 of an open set in a 6-dimensional irreducible representation. We then use equivariant intersection theory to calculate the integral Chow ring of this stack.
Key Words:
2000 Mathematics Subject Classification:
Notes
1That is to say of arithmetic genus 0.
2This means that every GL n -torsor is locally trivial in the Zariski topology.
Communicated by S. Kleiman.