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In this paper, we have obtained upper bound on third Hankel determinant for the functions belonging to the class of close-to-convex functions.

An operator associated with the Wright function is introduced in the open unit disk. Differential subordination and superordination, results associated with this operator are obtained by investigating appropriate classes of admissible functions. In particular, some inequalities for modified Bessel functions are also obtained. [ABSTRACT FROM AUTHOR]

In this work, we introduce and investigate an interesting subclass Xt (γ) of analytic and close-to-convex functions in the open unit disk .... For functions belonging to the class Xt (γ), we drive several properties including coefficient estimates, distortion theorems, covering theorems and radius of convexity. [ABSTRACT FROM AUTHOR]

This paper presents a result relating to subordination of analytic function in the unit disk and provides an improved version of a result published recently in [Math. Slovaca 60 (4) (2010), 471-484]. Besides stating and proving here a corrected form of this result, we also consider its generalization. The concluding remarks indicate brie?y other possibilities of extensions to some of the results obtained in [6]. [ABSTRACT FROM AUTHOR]

The purpose of the present article is to investigate several new sub-classes of analytic functions defined by using Dziok-Srivastava operator and investigate linebreak various inclusion relationships for these sub-classes. Some interesting corollaries and consequences of the results presented here are also discussed. [ABSTRACT FROM AUTHOR]

Making use of certain extended derivative operator of Ruscheweyh type, we introduce a new class ℑp(λ, μ, α) of meromorphic multivalent function in the punctured disk 픻 = {z : z ∈ ℂ, 0 < |z| < 1}, and obtain some sufficient conditions for the functions belonging to this class. [ABSTRACT FROM AUTHOR]