Some properties for certain classes of univalent functions defined by differential inequalities |
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Authors: | Zhigang PENG Gangzhen ZHONG |
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Institution: | Faculty of Mathematics and Statistics, Hubei University, Wuhan 430062, China |
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Abstract: | Let A be the space of functions analytic in the unit disk D={z: |z| < 1}. Let U denote the set of all functions f ? A satisfying the conditions f(0)=f′(0)?1=0 and
. Also, let Ω denote the set of all functions f ? A satisfying the conditions f(0) = f′(0)-1 = 0 and
. In this article, we discuss the properties of U and Ω. |
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Keywords: | univalent function Starlike function Hadamard product extreme point support point 30C45 30C75 30C80 |
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