English

Thom form in equivariant Cech-de Rham theory

Algebraic Topology 2017-06-13 v1

Abstract

In the present paper, we provide the foundation of a GG-equivariant Cech-de Rham theory for a compact Lie group GG by using the Cartan model of equivariant differential forms. Our approach is quite elementary without referring to the Mathai-Quillen framework. In particular, by a direct computation, we give an explicit formula of the U(l)U(l)-equivariant Thom form of C^l, which deforms the classical Bochnor-Martinelli kernel. Also we discuss a version of equivariant Riemann-Roch formula.

Keywords

Cite

@article{arxiv.1706.03238,
  title  = {Thom form in equivariant Cech-de Rham theory},
  author = {Ko Fujisawa},
  journal= {arXiv preprint arXiv:1706.03238},
  year   = {2017}
}

Comments

26pages, no figures

R2 v1 2026-06-22T20:14:56.504Z