The integral Chow ring of weighted blow-ups

Published 4 Jul 2023 in math.AG | (2307.01459v2)

Abstract: We give a formula for the integral Chow rings of weighted blow-ups. Along the way, we also compute the integral Chow rings of weighted projective stack bundles, a formula for the Gysin homomorphism of a weighted blow-up, and a generalization of the splitting principle. In addition, in the appendix we compute the Chern class of a weighted blow-up.

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