Site logo

Generalization of an Eneström-Kakeya type theorem to the quaternions

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

CC BY-NC 4.0 This work is licensed under Creative Commons Attribution–NonCommercial International License (CC BY-NC 4.0).

Abstract

The well-known Eneström-Kakeya theorem states that polynomial p(z)=∑nν=0aνzνp(z)=∑ν=0naνzν, where 0≤a0≤a1≤⋯≤an0≤a0≤a1≤⋯≤an, has all of its (complex) zeros in |z|≤1|z|≤1. Many generalizations of this result exist in the literature. In this paper, we extend one such result to the quaternionic setting and state one of the possible corollaries.

Subscribe to TheGufo Newsletter​