RT - Journal Article T1 - On the $s^{th}$ Derivative of a Polynomial-II JF - IJMSI YR - 2017 JO - IJMSI VO - 12 IS - 2 UR - http://ijmsi.ir/article-1-690-en.html SP - 101 EP - 109 K1 - Polynomial K1 - Zeros K1 - $s^{th}$ derivative AB - The paper presents an $L^{r}-$ analogue of an inequality regarding the $s^{th}$ derivative of a polynomial having zeros outside a circle of arbitrary radius but greater or equal to one. Our result provides improvements and generalizations of some well-known polynomial inequalities. LA eng UL http://ijmsi.ir/article-1-690-en.html M3 10.7508/ijmsi.2017.2.006 ER -