Some Starlikeness Criterions for Analytic Functions
نویسندگان
چکیده
Copyright q 2010 Gejun Bao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We determine the condition on α, μ, β, and λ for which | 1−α z/f z μ α zf ′ z /f z z/f z − 1| < λ implies f z ∈ S∗ β , where S∗ β is the class of starlike functions of order β. Some results of Obradović and Owa are extended. We also obtain some new results on starlikeness criterions.
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تاریخ انتشار 2011