Results 11 to 20 of about 3,137 (178)
Starlike and Convex Properties for Hypergeometric Functions [PDF]
International Journal of Mathematics and Mathematical Sciences, 2008 The purpose of the present paper is to give some characterizations for a (Gaussian) hypergeometric function to be in various subclasses of starlike and convex functions. We also consider an integral operator related to the hypergeometric function.
Oh Sang Kwon, Nak Eun Cho
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Classes of uniformly starlike and convex functions [PDF]
International Journal of Mathematics and Mathematical Sciences, 2004 Some classes of uniformly starlike and convex functions are introduced. The geometrical properties of these classes and their behavior under certain integral operators are investigated.
Saeid Shams +2 more
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Starlikeness and Convexity of Generalized Struve Functions [PDF]
Abstract and Applied Analysis, 2013 We give sufficient conditions for the parameters of the normalized form of the generalized Struve functions to be convex and starlike in the open unit disk.
Nihat Yagmur, Halit Orhan
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On radii of starlikeness and convexity for convolutions of starlike functions [PDF]
International Journal of Mathematics and Mathematical Sciences, 1997 In this paper, we obtain the radiuses of univalence, starlikeness and convexity for convolutions of starlike functions.
Yi Ling, Shusen Ding
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Convex and starlike functions [PDF]
Colloquium Mathematicum, 1986 The authors exploit some results due to \textit{St. Ruscheweyh} and \textit{T. Sheil-Small} [Comment. Math. Helv. 48, 119-135 (1973; Zbl 0261.30015)] to obtain theorems which relate convex and starlike univalent functions of order \(\frac12\) with their partial sums.
Singh, Sunder, Singh, Ram
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Radius of Starlikeness of Convex Combinations of Univalent Starlike Functions [PDF]
Proceedings of the American Mathematical Society, 1980 The radius of starlikeness of the convex combination \[ t f ( z )
Hamilton, D. H., Tuan, P. D.
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Uniformly starlike functions and uniformly convex functions related to the Pascal distribution [PDF]
Mathematica Bohemica, 2021 In this article, we aim to find sufficient conditions for a convolution of analytic univalent functions and the Pascal distribution series to belong to the families of uniformly starlike functions and uniformly convex functions in the open unit disk ...
Gangadharan Murugusundaramoorthy +1 more
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An application of the generalized Bessel function [PDF]
Mathematica Bohemica, 2017 We introduce and study some new subclasses of starlike, convex and close-to-convex functions defined by the generalized Bessel operator. Inclusion relations are established and integral operator in these subclasses is discussed.
Hanan Darwish +2 more
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Sufficient Conditions for Starlike Functions Associated with the Lemniscate of Bernoulli [PDF]
, 2013 Let -1\leq ...
Cho, Nak Eun +3 more
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On Starlike and Close-to-Convex Functions [PDF]
Proceedings of the London Mathematical Society, 1963 Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/135466/1/plms0290 ...
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