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on certain properties for new subclass of meromorphic starlike functions
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نویسنده
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moradi sirous ,taati mohammad
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منبع
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international journal of nonlinear analysis and applications - 2021 - دوره : 12 - شماره : 1 - صفحه:273 -285
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چکیده
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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).
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کلیدواژه
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starlike function، meromorphic function، hadamard product، analytic function
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آدرس
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lorestan university, faculty of science, department of mathematics, iran, payame noor university, faculty of science, department of mathematics, iran
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پست الکترونیکی
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m_taati@pnu.ac.ir
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Authors
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