%0 Journal Article
%T On maximum modulus for the derivative of a polynomial
%A K. K. Dewan
%A Sunil Hans
%J Annales UMCS, Mathematica
%D 2009
%I 
%R 10.2478/v10062-009-0006-x
%X If P(z) is a polynomial of degree n, having all its zeros in the disk then it was shown by Govil [Proc. Amer. Math. Soc. 41, no. 2 (1973), 543-546] that In this paper, we obtain generalization as well as improvement of above inequality for the polynomial of the type . Also we generalize a result due to Dewan and Mir [Southeast Asian Bull. Math. 31 (2007), 691-695] in this direction.
%K Polynomials
%K inequalities
%K derivatives
%K zeros
%U http://versita.metapress.com/content/0u15l6689q68ln34/?p=53d3d035dc3c4d16820f83657672712a&pi=5