Radii of starlikeness and convexity of generalized Struve functions

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Hacettepe Journal of Mathematics and Statistics
Volume:49 Issue:4
Radii of starlikeness and convexity of generalized Struve functions

Radii of starlikeness and convexity of generalized Struve functions

Pages : 1216-1233

View : 26 | Download : 14

Publication Date : 2020-08-06

Article Type : Research Paper

Abstract :In this paper, it is aimed to determine the radii of starlikeness and convexity of the normalized generalized Struve functions for three different kinds of normalization and to find tight lower and upper bounds for the radius of starlikeness and convexity of these normalized Struve functions by making use of Euler-Rayleigh inequalities. The Laguerre-Polya class of entire functions has a crucial role in constructing our main results. *********************************************************************
Keywords : generalized Struve functions, univalent, starlike and convex functions, radius of starlikeness and convexity, Mittag Leffler expansions, Laguerre Polya class of entire functions

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