A new general formula for the Cauchy Index on an interval with Subresultants
Algebraic Geometry
2020-07-21 v2
Abstract
We present a new formula for the Cauchy index of a rational function on an interval using subresultant polynomials. There is no condition on the endpoints of the interval and the formula also involves in some cases less subresultant polynomials.
Cite
@article{arxiv.1812.02470,
title = {A new general formula for the Cauchy Index on an interval with Subresultants},
author = {Daniel Perrucci and Marie-Françoise Roy},
journal= {arXiv preprint arXiv:1812.02470},
year = {2020}
}