Ishfaq Dar

collaborators

2 papers

math.CV2024

On the zeros of certain composite polynomials and an operator preserving inequalities

N. A. Rather, Ishfaq Dar, Suhail Gulzar

If all the zeros of $n$ th degree polynomials $f (z)$ and $g (z) = \sum_{k = 0}^{n} λ_{k} (k n) z^{k}$ respectively lie in the cricular regions $∣ z ∣ \leq r$ and $∣ z ∣ \leq s ∣ z - σ ∣$ , $s > 0$ ,…

math.CV2024

Location of the zeros of quaternionic polynomials using matrix tools

N. A. Rather, Naseer Ahmad Wani, Ishfaq Dar

Using a variety of matrix techniques, the problem of locating the left eigenvalues of the quaternion companion matrices are investigated in this paper. In a recent paper, Dar et al…