Localization of Bott-Chern classes and Hermitian residues
Abstract
We develop a theory of Cech-Bott-Chern cohomology and in this context we naturally come up with the relative Bott-Chern cohomology. In fact Bott-Chern cohomology has two relatives and they all arise from a single complex. Thus we study these three cohomologies in a unified way and obtain a long exact sequence involving the three. We then study the localization problem of characteristic classes in the relative Bott-Chern cohomology. For this we define the cup product and integration in our framework and we discuss local and global duality homomorphisms. After reviewing some materials on connections, we give a vanishing theorem relevant to our localization. With these, we prove a residue theorem for a vector bundle admitting a Hermitian connection compatible with an action of the non-singular part of a singular distribution. As a typical case, we discuss the action of a distribution on the normal bundle of an invariant submanifold (so-called the Camacho-Sad action) and give a specific example.
- Publication:
-
arXiv e-prints
- Pub Date:
- May 2017
- DOI:
- 10.48550/arXiv.1705.09420
- arXiv:
- arXiv:1705.09420
- Bibcode:
- 2017arXiv170509420C
- Keywords:
-
- Mathematics - Complex Variables;
- Mathematics - Algebraic Geometry;
- Mathematics - Differential Geometry;
- Primary 32A27;
- 32C35;
- 32S65;
- 53C56;
- Secondary 14C30;
- 53B35;
- 53C05;
- 57R20
- E-Print:
- 28 pages, to appear in Journal of the London Mathematical Society