Document Type : Original Article

**Authors**

Department of Mathematics, University of Kashmir, Srinagar 190006, Jammu & Kashmir, India

**Abstract**

Let P(z) be a polynomial of degree n whose coefficients satisfy a_{n} ≥ a_{n−1} ≥ ... ≥ a_{0} > 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.

**Keywords**

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August 2019

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