Baum-Bott residue currents
Abstract
Let be a holomorphic foliation of rank on a complex manifold of dimension , let be a compact connected component of the singular set of , and let be a homogeneous symmetric polynomial of degree with . Given a locally free resolution of the normal sheaf of , equipped with Hermitian metrics and certain smooth connections, we construct an explicit current with support on that represents the Baum-Bott residue and is obtained as the limit of certain smooth representatives of . If the connections are -connections and , then is independent of the choice of metrics and connections. When has rank one we give a more precise description of in terms of so-called residue currents of Bochner-Martinelli type. In particular, when the singularities are isolated, we recover the classical expression of Baum-Bott residues in terms of Grothendieck residues.
Cite
@article{arxiv.2302.08887,
title = {Baum-Bott residue currents},
author = {Lucas Kaufmann and Richard Lärkäng and Elizabeth Wulcan},
journal= {arXiv preprint arXiv:2302.08887},
year = {2024}
}