|国家预印本平台
首页|Segre forms of singular metrics on vector bundles and Lelong numbers

Segre forms of singular metrics on vector bundles and Lelong numbers

Segre forms of singular metrics on vector bundles and Lelong numbers

来源:Arxiv_logoArxiv
英文摘要

Let $E\to X$ be a holomorphic vector bundle with a singular Griffiths negative Hermitian metric $h$ with analytic singularities. One can define, given a smooth reference metric $h_0$, a current $s(E,h,h_0)$ that is called the associated Segre form, which defines the expected Bott-Chern class and coincides with the usual Segre form of $h$ where it is smooth. We prove that $s(E,h,h_0)$ is the limit of the Segre forms of a sequence of smooth metrics if the metric is smooth outside the unbounded locus, and in general as a limit of Segre forms of metrics with empty unbounded locus. One can also define an associated Chern form $c(E,h,h_0)$ and we prove that the Lelong numbers of $s(E,h,h_0)$ and $c(E,h,h_0)$ are integers if the singularities are integral, and non-negative for $s(E,h,h_0)$. We also extend these results to a slightly larger class of singular metrics with analytic singularities.

Mats Andersson、Richard L?rk?ng

数学

Mats Andersson,Richard L?rk?ng.Segre forms of singular metrics on vector bundles and Lelong numbers[EB/OL].(2025-06-18)[2025-07-03].https://arxiv.org/abs/2506.15473.点此复制

评论