Mathematics (Jan 2019)

Coefficient Inequalities of Functions Associated with Hyperbolic Domains

  • Sarfraz Nawaz Malik,
  • Shahid Mahmood,
  • Mohsan Raza,
  • Sumbal Farman,
  • Saira Zainab,
  • Nazeer Muhammad

DOI
https://doi.org/10.3390/math7010088
Journal volume & issue
Vol. 7, no. 1
p. 88

Abstract

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In this work, our focus is to study the Fekete-Szegö functional in a different and innovative manner, and to do this we find its upper bound for certain analytic functions which give hyperbolic regions as image domain. The upper bounds obtained in this paper give refinement of already known results. Moreover, we extend our work by calculating similar problems for the inverse functions of these certain analytic functions for the sake of completeness.

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