arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.14583math.CV
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关于整函数共享有限集的一个注记及其在差分方程中的应用

A note on entire functions sharing a finite set with applications to difference equations

Molla Basir Ahamed

摘要:

研究了整函数差分算子的值分布和唯一性问题。本文证明了有限序整函数$ f $当与$ \max\{ρ(α), ρ(β)\}<ρ(f) $及其差$ \mathcal{L}^n_c(f)=\sum_{j=0}^{n}a_jf(z+jc) $分担两个整函数$ α$和$ β$的集合$ \mathcal{S}=\{α(z), β(z)\} $时,得到了$ \mathcal{L}^n_c(f)\equiv f $,更重要的是得到了函数$ f $的某种形式,改进了\emph{k. Liu},\emph{X. M. Li},\emph{J. Qi, Y. Wang and Y. Gu}等,并给出了一些构造性的例子来说明$ \max\{ρ(α), ρ(β)\}<ρ(f) $在我们的主要结果中是尖锐的.还展示了实例,以表明如果$ CM $共享被$ IM $共享所取代,则主要结果的结论不再成立。

英文摘要:

Value distribution and uniqueness problems of difference operator of an entire function have been investigated in this article. This research shows that a finite ordered entire function $ f $ when sharing a set $ \mathcal{S}=\{α(z), β(z)\} $ of two entire functions $ α$ and $ β$ with $ \max\{ρ(α), ρ(β)\}<ρ(f) $ with its difference $ \mathcal{L}^n_c(f)=\sum_{j=0}^{n}a_jf(z+jc) $, then $ \mathcal{L}^n_c(f)\equiv f $, and more importantly certain form of the function $ f $ has been found. The results in this paper improve those given by \emph{k. Liu}, \emph{X. M. Li}, \emph{J. Qi, Y. Wang and Y. Gu} etc. Some constructive examples have been exhibited to show the condition $ \max\{ρ(α), ρ(β)\}<ρ(f) $ is sharp in our main result. Examples have been also exhibited to show that if $ CM $ sharing is replaced by $ IM $ sharing, then conclusion of the main results ceases to hold.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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