丰向量丛 Schur 类的 Hodge-Riemann 双线性关系
代数几何
2021-01-11 v3
摘要
设 为 维射影流形, 为 上的丰向量丛, 为 的一个划分。我们证明 Schur 类 具有 Hard Lefschetz 性质并满足 Hodge-Riemann 双线性关系。作为推论,我们得到了丰向量丛特征类之间的各种新不等式,包括 Khovanskii-Teissier 不等式的高秩版本。
引用
@article{arxiv.1905.13636,
title = {Hodge-Riemann bilinear relations for Schur classes of ample vector bundles},
author = {Julius Ross and Matei Toma},
journal= {arXiv preprint arXiv:1905.13636},
year = {2021}
}
备注
v2. Two principal changes are (1) a generalisation of higher-rank Khovanskii-Tessier inequalities to Schur classes (Theorem 1.4) and (2) the inclusion of an application to cones of Nef cycles on self-products of a very general principally polarized abelian surface (Section 6) v3. Improved statement on derived Schur classes. Answers to some previously asked questions and examples provided