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Inequalities concerning polar derivative of polynomials

DOI: 10.2478/v10062-011-0001-x

Keywords: Polynomials, maximum modulus, inequalities in the complex domain, polar derivative

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Abstract:

In this paper we obtain certain results for the polar derivative of a polynomial , having all its zeros on which generalizes the results due to Dewan and Mir, Dewan and Hans. We also obtain certain new inequalities concerning the maximum modulus of a polynomial with restricted zeros.

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