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Some Inequalities of differential polynomials II

In this paper, we consider the value distribution of the differential polynomials $f^2f^{(k)}-1$ where $k$ is a positive integer, and obtain some estimates only by the reduced counting function. Our result answers a question in (Some inequalities of differential polynomials, Mathematical Inequalities and Applications, \textbf{12}(2009), no.1, 99--113) completely.

preprint2014arXivOpen access
Junfeng XuHongxun YiZhanliang Zhang
math.CV
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Open access3 authors1 topic
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Junfeng XuHongxun YiZhanliang Zhang

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