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Certain Coefficient Problems for q-Starlike Functions Associated with q-Analogue of Sine Function

Yusra Taj, Saira Zainab, Qin Xin, Ferdous M. O. Tawfiq, Mohsan Raza, Sarfraz Nawaz Malik

2022Symmetry13 citationsDOIOpen Access PDF

Abstract

This study introduces a subclass Sqs* of starlike functions associated with the q-analogue of the sine function defined in symmetric unit disk. This article comprises the investigation of sharp coefficient bounds, and the upper bound of the third-order Hankel determinant for this class. It also includes the findings of Zalcman and generalized Zalcman conjectures for functions of this class.

Topics & Concepts

SineMathematicsFunction (biology)Class (philosophy)SubclassUnit diskUpper and lower boundsPure mathematicsMathematical analysisOrder (exchange)CombinatoricsComputer scienceGeometryEconomicsImmunologyFinanceArtificial intelligenceEvolutionary biologyBiologyAntibodyAnalytic and geometric function theoryPharmacological Effects of Medicinal PlantsPolymer Synthesis and Characterization