Document Type : Research Paper

Authors

• S. O. Olatunji ¹
• Abiodun Tinuoye Oladipo ²
• Trailokya Panigrahi ³

¹ Department of Mathematical Sciences, Federal University of Technology, Akure, Nigeria

² Department of Pure and Applied Mathematics\\Ladoke Akintola University of Technology, P.M.B. 4000, Ogbomoso, Nigeria

³ Institute of Mathematics and Applications, Andharua, Bhubaneswar-751029, Odisha, India

Abstract

In this paper, the authors investigate the bi-univalency of the generalized distribution series associated with quasi-subordination and remodelled $s$-sigmoid function. The early few coefficients are obtained to achieve our goal. The results obtained are new to the history of bi-univalency.

Keywords

• analytic function
• univalent function
• starlike function
• convex function
• quasi-subordination
• logistic sigmoid function
• s−sigmoid function