On quasi-subordination for bi-univalency involving generalized distribution series associated with remodelled $s$-sigmoid function

نویسندگان
Olatunji, S. O. ID 1
Panigrahi, Trailokya ID 2
Oladipo, Abiodun Tinuoye ID 3

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

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

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

doi
10.22075/ijnaa.2022.28206.3855
چکیده

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.

کلیدواژه‌ها
Analytic function, univalent function, starlike function, convex function, quasi-subordination, logistic sigmoid function, s−sigmoid function