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Journal of Inequalities and Applications 
Volume 2006 (2006), Article ID 91420, 7 pages
doi:10.1155/JIA/2006/91420

Turan's inequality for appell polynomials

Slavko Simic

Mathematical Institute SANU, Kneza Mihaila 35, Belgrade 11001, Serbia and Montenegro

Received 31 October 2003; Accepted 22 November 2003

Abstract

We give some necessary and sufficient conditions for the class of Appell polynomials to satisfy well-known Turan's inequality. Among the other corollaries, we apply our results to some classes of orthogonal polynomials.