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β型螺形函数的一个子族的积分表示式和充分必要条件

An Integral Representation and One Necessary and Sufficient Condition of a Subclass of Spirallike Functions of Type β
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摘要 在复平面单位圆盘内引入β型螺形函数族S_β的一个子类S_α~β函数族,给出了S_α~β族的一个积分表示式和充分必要条件,得到了S_α~β族的第二、三项系数的关系式. In this paper,a subclass of spirallike functions of typeβdenoted by S_α~βis introduced in the unit disc of the complex plane.We give an integral representation and one necessary and sufficient condition of S_α~βclass.We also obtain the relative equation between the second and the third coefficient of S_α~βclass.
出处 《数学的实践与认识》 CSCD 北大核心 2011年第4期154-158,共5页 Mathematics in Practice and Theory
基金 江西省自然科学基金(2007GZS0177) 江西省教育厅科学技术研究项目(GJJ09149)
关键词 α次星形函数 Β型螺形函数 S_α~β函数族 判定条件 系数估计 starlike functions of orderα spirallike functions of type β functions class ofs_α~β judgement condition coefficient estimate
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