Fekete–Szegö Inequalities for a New Subclass of Bi-Univalent Functions Associated with Gegenbauer Polynomials
Murat Çağlar, Luminiţa-Ioana Cotîrlă, Mucahit Buyankara
Abstract
We introduce and investigate in this paper a new subclass of bi-univalent functions associated with the Gegenbauer polynomials which satisfy subordination conditions defined in a symmetric domain, which is the open unit disc. For this new subclass, we obtain estimates for the Taylor–Maclaurin coefficients a2,a3 and the Fekete–Szegö inequality a3−μa22.
Topics & Concepts
SubclassSubordination (linguistics)MathematicsPure mathematicsUnit diskDomain (mathematical analysis)CombinatoricsMathematical analysisMedicineAntibodyPhilosophyLinguisticsImmunologyAnalytic and geometric function theoryHolomorphic and Operator TheoryDifferential Equations and Boundary Problems