The aim of this work is to consider bounds for the zeros of quaternionic polynomials and
regular functions with coefficients located on only one side of the quaternionic variable. We …

In a recent paper, Ishfaq Dar, worked on the problem of locating the zeros of quaternion
polynomials by introducing various matrix techniques. In this paper, we use those newly …

In this paper, the problem of locating the left eigenvalues of the quaternion matrices and
their connection with the zeros of the quaternion polynomials with quaternion coefficients is …

In this manuscript, we are concerned with the problem of locating the zeros of some special
quaternionic polynomials and regular functions with restricted coefficients; namely …

Using tools from the newly developed theory of regular functions and polynomials with
quaternionic coefficients located on only one side of the variable, we derive zero-free …

The main purpose of this paper is to extend various results of Eneström-Kakeya type from
the complex to quaternionic setting by virtue of a maximum modulus theorem and the …

Recently, several authors proved a Bernstein type inequality for so called quaternionic
unilateral polynomials. Although these polynomials are not generalized complex …

In this manuscript, we investigate bounds for the zeros of quaternionic polynomials with
restricted coefficients. We find an annular region that contains all the zeros of a quaternionic …

The estimation of zeros of a polynomial with quaternionic coefficients has been done by
many mathematicians in the recent past using various approaches. In this paper, we …

The goal of this paper is to find spherical shells that contain all of the zeros of a unilateral
polynomial with quaternionic coefficients. These bounds are derived using Geršgorin-type …