It is under transmitting ...Communications in Nonlinear Analysis2371-79206120190801On the Zeros of the Polar Derivative of a Polynomial323990790ENM.GulzarDepartment of Mathematics, University of Kashmir, Srinagar 190006, Jammu & Kashmir, IndiaB.ZargarDepartment of Mathematics, University of Kashmir, Srinagar 190006, Jammu & Kashmir, IndiaR.AkhterDepartment of Mathematics, University of Kashmir, Srinagar 190006, Jammu & Kashmir, IndiaJournal Article20190715Let P(z) be a polynomial of degree n whose coefficients satisfy a<sub>n</sub> ≥ a<sub>n−1</sub> ≥ ... ≥ a<sub>0</sub> > 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.http://www.cna-journal.com/article_90790_2852e2deafb164d3d3a16c46e2963ff7.pdf