International Journal of Engineering, Science and Mathematics
  • Year: 2020
  • Volume: 9
  • Issue: 5

On coefficient estimates for new subclasses of q-bi-univalent functions

  • Author:
  • Read S. A. Qahtan, Hamid Shamsan, S. Latha
  • Total Page Count: 12
  • Page Number: 45 to 56

Department of Mathematics, Yuvaraja’s College, University of Mysore, Mysore570005, India

* Author correspondence: Read S. A. Qahtan, Department of Mathematics, Yuvaraja's College, University of Mysore, Mysore, 570005

Online published on 4 January, 2021.

Abstract

In this paper, we introduce and investigate two new subclasses of the function class Σ of λ-q-bi-spirallike functions defined in the open unit disc. Furthermore, We find estimates on the coefficients |α2|,|α3| and |α4| for functions in these new subclasses.

Keywords

Univalent functions, Bi-univalent functions, Q-λ-spirallike, Coefficients bounds