Fekete-Szegӧ Functional for Classes X_q^n (φ) and Y_q^n (φ)


  • Suet Yie Tseu Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Malaysia
  • Aini Janteng Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Malaysia




Analytic function, Univalent function, q-differential operator, Fekete-Szegӧ functional, Subordination


Two new subclasses of analytic functions are proposed by applying q-differential operator which is denoted as . Throughout this study, we acquired the initial coefficients  and  and the upper bound for the functional   of the functions  in the classes  and .


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