English

A short ODE proof of the Fundamental Theorem of Algebra

Classical Analysis and ODEs 2023-09-25 v2

Abstract

We propose a short proof of the Fundamental Theorem of Algebra based on the ODE that describes the Newton flow and the fact that the value P(z)|P(z)| is a Lyapunov function. It clarifies an idea that goes back to Cauchy.

Keywords

Cite

@article{arxiv.2304.03776,
  title  = {A short ODE proof of the Fundamental Theorem of Algebra},
  author = {Ramona Anton and Nicolae Mihalache and François Vigneron},
  journal= {arXiv preprint arXiv:2304.03776},
  year   = {2023}
}