@article{article_605621, title={On a subclass of the generalized Janowski type functions of complex order}, journal={Hacettepe Journal of Mathematics and Statistics}, volume={49}, pages={1726–1734}, year={2020}, DOI={10.15672/hujms.605621}, author={Özkan Kılıç, Öznur and Eroğlu, Nuray}, keywords={Analytic function, Subordination, $ \lambda$-spirallike function, $ \lambda$-Robertson function, $ \lambda$-close-to-spirallike function, $ \lambda$-close-to-Robertson function, Ruscheweyh derivative operator}, abstract={In this paper, we introduce the class $\mathcal {JR}^{\lambda}_{b}\left(\alpha,\beta, \delta, A,B\right)$ of generalized Janowski type functions of complex order defined by using the Ruscheweyh derivative operator in the open unit disc $ \mathbb D=\left \{z\in \mathbb C: \left \vert z\right \vert <1\right \}$. The bound for the n-th coefficient and subordination relation are obtained for the functions belonging to this class. Some consequences of our main theorems are same as the results obtained in the earlier studies. <br />}, number={5}, publisher={Hacettepe University}