TY - JOUR T1 - Coefficient Estimates for Certain Subclasses of Bi-Univalent Ma-Minda Mocanu-Convex Functions JO - Analysis in Theory and Applications VL - 2 SP - 141 EP - 150 PY - 2014 DA - 2014/06 SN - 30 DO - http://doi.org/10.4208/ata.2014.v30.n2.1 UR - https://global-sci.org/intro/article_detail/ata/4480.html KW - Analytic functions, univalent functions, bi-univalent functions, bi-starlike functions, bi-convex functions, bi-Mocanu-convex functions, subordination, Hohlov operator. AB -

In this paper, we introduce and investigate a new subclass of the function class $\Sigma$ of bi-univalent functions of the Mocanu-convex type defined in the open unit disk, satisfy Ma and Minda subordination conditions. Furthermore, we find estimates on the Taylor-Maclaurin coefficients $|a_2|$ and $|a_3|$ for functions in the new subclass introduced here. Further Application of Hohlov operator to this class is obtained. Several (known or new) consequences of the results are also pointed out.