具有负系数的一类单叶函数(英文) |
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引用本文: | 盖云英.具有负系数的一类单叶函数(英文)[J].哈尔滨工业大学学报,1990(6). |
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作者姓名: | 盖云英 |
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作者单位: | 哈尔滨工业大学数学系 |
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摘 要: | 1. Introduction Let A denote the class of functions of the form f(z)=z+sum from k=2 to ∞a_k z~k (1) that are analytic in the unit disk D={z:|z|<1}. Let T be the subclass of A consisting of functions of the form f(z)=z-sum from k=2 to ∞|a_k|z~k. that are univalent in D.
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