Let p(z) be a polynomial of degree n and for a complex number α, let Dαp(z) = np(z)+(α-z)p′(z)
denote the polar derivative of the polynomial p(z) with respect to α.It is of interest to extend
ordinary inequality of polynomial into polar derivatives as the later versions have mathematical
Dr. Barchand Chanam
Department of Mathematics, National Institute of Technology, Manipur, Imphal – 795004, India.
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