Faber Polynomial Coefficient Estimates for Bi-Close-to-Convex Functions Defined by the q-Fractional Derivative

By utilizing the concept of q-fractional derivative operator and bi-close-to-convex functions, we define a new subclass A, where class A contains normalized analytic functions in open unit disk E is invariant or symmetric under rotation. First, using Faber polynomial expansion (FPE) technique, determine lth coefficient bound for contained within this class. We provide further explanation first few coefficients defined by derivative. also emphasize upon well-known outcomes major findings article.