%0 Journal Article
%T On the Zeros of the Polar Derivative of a Polynomial
%J Communications in Nonlinear Analysis
%I It is under transmitting ...
%Z 2371-7920
%A Gulzar, M.
%A Zargar, B.
%A Akhter, R.
%D 2019
%\ 08/01/2019
%V 6
%N 1
%P 32-39
%! On the Zeros of the Polar Derivative of a Polynomial
%K Coeﬃcients
%K Polynomial
%K Polar Derivative
%R
%X Let P(z) be a polynomial of degree n whose coefficients satisfy an ≥ an−1 ≥ ... ≥ a0 > 0.Then according to the Enstrom-Kakeya Theorem, all the zeros of P(z) lie in |z|≤ 1. Aziz and Mohammad have shown that under the same condition on coeﬃents the zeros of P(z) whose modulus is greater than or equal to n/(n+1) are simple. In this paper, we extend the above result to the polar derivative.
%U http://www.cna-journal.com/article_90790_2852e2deafb164d3d3a16c46e2963ff7.pdf