Axioms (Mar 2023)

Coefficient Bounds for a Family of <i>s</i>-Fold Symmetric Bi-Univalent Functions

  • Isra Al-shbeil,
  • Nazar Khan,
  • Fairouz Tchier,
  • Qin Xin,
  • Sarfraz Nawaz Malik,
  • Shahid Khan

DOI
https://doi.org/10.3390/axioms12040317
Journal volume & issue
Vol. 12, no. 4
p. 317

Abstract

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We present a new family of s-fold symmetrical bi-univalent functions in the open unit disc in this work. We provide estimates for the first two Taylor–Maclaurin series coefficients for these functions. Furthermore, we define the Salagean differential operator and discuss various applications of our main findings using it. A few new and well-known corollaries are studied in order to show the connection between recent and earlier work.

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