Generalized Minkowski weights and Chow rings of T-varieties
Algebraic Geometry
2024-04-02 v2
Abstract
We give a combinatorial characterization of Fulton's operational Chow cohomology groups of a complete , -factorial, rational T-variety of complexity one in terms of so called generalized Minkowsky weights in the contraction-free case. We also describe the intersection product with Cartier invariant divisors in terms of the combinatorial data. In particular this provides a new way of computing top intersection numbers of invariant Cartier divisors combinatorially.
Keywords
Cite
@article{arxiv.2202.03088,
title = {Generalized Minkowski weights and Chow rings of T-varieties},
author = {Ana María Botero},
journal= {arXiv preprint arXiv:2202.03088},
year = {2024}
}
Comments
Updated version. We thank an anonymous referee for their insightful comments. Some statements have been slightly modified. To be accepted in Doc. Math