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arXiv · 1812.02470

A new general formula for the Cauchy Index on an interval with Subresultants

Daniel Perrucci·Marie-Françoise Roy
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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.

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Daniel Perrucci, Marie-Françoise Roy. 2018-12-06. A new general formula for the Cauchy Index on an interval with Subresultants. https://arxiv.org/abs/1812.02470

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