Author/Authors :
Taati Mohammad نويسنده Department of Mathematics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran. , Moradi Sirous نويسنده Department of Mathematics, Faculty of Science, Arak University, Arak 38156-8-8349, Iran. , Najafzadeh Shahram نويسنده Department of Mathematics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran.
Abstract :
In 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.