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   on certain properties for new subclass of meromorphic starlike functions  
   
نویسنده moradi sirous ,taati mohammad
منبع international journal of nonlinear analysis and applications - 2021 - دوره : 12 - شماره : 1 - صفحه:273 -285
چکیده    ‎in this paper we studying some properties of starlike function of order $lambda$ which satisfy in the condition‎‎$$re(frac{zf^{’}(z)}{f(z)}+alphafrac{z^{2}f^{’’}(z)}{f(z)})<1-lambda+alpha$$‎‎for all $zin u={z:|z|<1}$‎, ‎where $f(z)=1+sum_{k=1}^infty a_{k}z^{k}$ is analytic in $u$‎, ‎$0leqslantalpha<2$ and $0leqslantlambda<1$‎. ‎our results extend previos results given by aghalary et al.‎ ‎(2009) and wang et al.(2014).
کلیدواژه ‎starlike function‎، ‎meromorphic function‎، ‎hadamard product‎، ‎analytic function‎
آدرس ‎lorestan university‎, ‎faculty of science‎, department of mathematics‎, iran, ‎payame noor university‎, ‎faculty of science‎, department of mathematics‎, iran
پست الکترونیکی m_taati@pnu.ac.ir
 
     
   
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