University of MaraghehSahand Communications in Mathematical Analysis2322-580707120170701Some properties and results for certain subclasses of starlike and convex functions1152424510.22130/scma.2017.24245ENMohammadTaatiDepartment of Mathematics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran.SirousMoradiDepartment of Mathematics, Faculty of Science, Arak University, Arak 38156-8-8349, Iran.ShahramNajafzadehDepartment of Mathematics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran.Journal Article20160904In the present paper, we introduce and investigate some properties of two subclasses $ Lambda_{n}( lambda , beta ) $ and $ Lambda_{n}^{+}( lambda , beta ) $; meromorphic and starlike functions of order $ beta $. In particular, several inclusion relations, coefficient estimates, distortion theorems and covering theorems are proven here for each of these function classes.https://scma.maragheh.ac.ir/article_24245_3db9b5e2b7f48b134162a38559056bf6.pdf