## Nonvanishing Vector Fields on Orbifolds

- CARLA FARSI
- 2008

- Published 2008

A Poincaré-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 EulerSatake characteristic of the orbifold and a boundary term. The boundary term is expressed as a sum of Euler characteristics of tangency and exitregion 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.

@inproceedings{Paquette2008TheIO,
title={The Index of a Vector Field on an Orbifold with Boundary},
author={Elliot Paquette and Christopher Seaton},
year={2008}
}