On D. Peterson's comparison formula for Gromov-Witten invariants

Abstract

We prove a formula of Dale Peterson comparing genus zero Gromov-Witten invariants of $G/P$ to those of $G/B$ using results of Atiyah-Bott and Ramanathan on canonical reductions of principal bundles.

9 pages. This version has sign and typo corrections, and a small gap in the proof filled