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一个与小函数有关的微分多项式不等式估计 被引量:2

An inequality of differential polynomials related to small function
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摘要 利用精简计数函数证明了关于φf2f(k)-1的定量估计不等式,这里f是一个超越亚纯函数,φ是关于f的小函数.此不等式推广了以往的结果. In this paper, a quantitative estimate of the differential polynomials φf2f(k) - 1 is obtained, where f is a transcendental meromorphic function,φ is a small function and k is a positive integer, by the reduced counting function when f has few simple zeros. This result improves the existed theorems.
作者 徐俊峰
出处 《纯粹数学与应用数学》 2015年第5期441-448,共8页 Pure and Applied Mathematics
基金 国家自然科学基金(11126327) 广东省自然科学基金(9452902001003278) 广东省高校优秀青年教师培养对象项目(Yq2013159)
关键词 亚纯函数 微分多项式 值分布 小函数 meromorphic functions, differential polynomials, value distribution, small functions
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参考文献9

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二级参考文献17

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