Inequalities for the Polar Derivative of a Polynomial

• 作者: Gulshan Singh W. M. Shah Yash Paul
• 来源期刊: 理论数学进展(英文)
• 学科: 数学
• 关键词: POLYNOMIAL INEQUALITY POLAR DERIVATIVE
• 年，卷（期）: 2011,（2）
• 页码范围: 23-27
• 页数: 5页
• 分类号: O1

摘要

If is a polynomial of degree , having all its zeros in |z|≤K, K≥1 , then it was proved by Aziz and Rather [2] that for every real or complex number with |a| ≥K, . In this paper, we sharpen above result for the polynomials p(z) of degree n>3