Communications of the
Korean Mathematical Society CKMS

In this work, we introduce a new subclass of analytic functions of complex order involving the $left( p,qight) $-derivative operator defined in the open unit disc. For this class, several Fekete-Szeg"{o} type coefficient inequalities are derived. We obtain the results of Srivastava extit{et al.~}cite{SR} as consequences of the main theorem in this study.

Keywords: Analytic function, univalent function, coefficient inequalities, Fekete-Szeg"{o} problem, subordination, Hadamard product (or convolution), $left( p,qight)$-derivative operator

MSC numbers: Primary 30C45