Coefficient Bounds for a Subclass of m-Fold Symmetric λ-Pseudo Bi-starlike Functions

  • Jay M. Jahangiri
  • G. MurugusundaramoorthyEmail author
  • K. Vijaya
  • K. Uma
Conference paper
Part of the Trends in Mathematics book series (TM)


In this paper we consider a class of λ-pseudo bi-starlike functions defined by subordination and determine the upper bounds for the first two coefficients of m-fold symmetric functions in this class. We also determine upper bounds for the Fekete–Szegö coefficients of such m-fold symmetric functions. Our findings for certain cases improve some of the previously published results.


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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Jay M. Jahangiri
    • 1
  • G. Murugusundaramoorthy
    • 2
    Email author
  • K. Vijaya
    • 2
  • K. Uma
    • 2
  1. 1.Mathematical SciencesKent State UniversityBurtonUSA
  2. 2.Department of Mathematics, School of Advanced SciencesVITVelloreIndia

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