The index of a vector field on an orbifold with boundary
Differential Geometry
2009-04-06 v1
Abstract
A Poincar\'{e}-Hopf theorem in the spirit of Pugh is proven for compact orbifolds with boundary. The theorem relates the index sum of a smooth vector field in generic contact with the boundary orbifold to the Euler-Satake characteristic of the orbifold and a boundary term. The boundary term is expressed as a sum of Euler characteristics of tangency and exit-region orbifolds. As a corollary, we express the index sum of the vector field induced on the inertia orbifold to the Euler characteristics of the associated underlying topological spaces.
Cite
@article{arxiv.0806.2113,
title = {The index of a vector field on an orbifold with boundary},
author = {Elliot Paquette and Christopher Seaton},
journal= {arXiv preprint arXiv:0806.2113},
year = {2009}
}
Comments
14 pages