• Title of article

    Bi-concave Functions Defined by Al-Oboudi Differential Operator

  • Author/Authors

    Altinkaya ، Sahsene Department of Mathematics - Beykent University

  • From page
    207
  • To page
    217
  • Abstract
    The purpose of the present paper is to introduce a class D^n Σ;δ C0(α) of bi-concave functions defined by Al-Oboudi differential operator. We find estimates on the Taylor-Maclaurin coefficients |a2| and |a3| for functions in this class. Several consequences of these results are also pointed out in the form of corollaries.
  • Keywords
    Bi , concave functions , Al , Oboudi differential operator , Coefficient estimates
  • Journal title
    Iranian Journal of Mathematical Sciences and Informatics (IJMSI)
  • Journal title
    Iranian Journal of Mathematical Sciences and Informatics (IJMSI)
  • Record number

    2709647