申大维.某些近于凸函数子类的极值点[J].数学研究及应用,1987,7(4):565~570 |
某些近于凸函数子类的极值点 |
On Extreme Points of Some Subclasses of Close-to-Convex Functions |
投稿时间:1984-06-12 |
DOI:10.3770/j.issn:1000-341X.1987.04.011 |
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中文摘要: |
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英文摘要: |
In this paper the closed convex hulls and extreme points are determined for C(β) and C*(1/2) .Then we determine coefficient bounds and distortion th eorems for these classes .All results are sharp. Finally, we discuss the relations hips between these classes and known classes of functions. |
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