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arXiv 2301.06290math.CV
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多项式系数线性差分方程超越整解的所有可能阶数小于1

All possible orders less than 1 of transcendental entire solutions of linear difference equations with polynomial coefficients

Katsuya Ishizaki, Zhi-Tao Wen

摘要:

本文研究了线性差分方程\begin{equation} P_m(z)Δ^mf(z)+\cdots+P_1(z)Δf(z)+P_0(z)f(z)=0,\tag{+} \end{equation}的超越整解的所有可能阶数小于1的情形,其中\begin{equation} P_m(z)Δ^mf(z)+\cdots+P_1(z)Δf(z)+P_0(z)f(z)=0,\tag{+} \end{equation}是$j=0,\ldots,m$的多项式.首先给出了差分方程(+)存在小于1阶超越整解的条件。其次,给出了差分方程(+)的超越整解的所有可能的阶数小于1的列表。此外,还给出了差分方程(+)的超越整解的最大不同阶数小于小于1.另外,对于任意给定的有理数$0<ρ<1$,我们可以构造一个多项式系数的线性差分方程,它具有$ρ$阶的超越整解.至少,我们的主要定理的一些例子进行了说明。

英文摘要:

In this paper, we study all possible orders which are less than 1 of transcendental entire solutions of linear difference equations \begin{equation} P_m(z)Δ^mf(z)+\cdots+P_1(z)Δf(z)+P_0(z)f(z)=0,\tag{+} \end{equation} where $P_j(z)$ are polynomials for $j=0,\ldots,m$. Firstly, we give the condition on existence of transcendental entire solutions of order less than 1 of difference equations (+). Secondly, we give a list of all possible orders which are less than 1 of transcendental entire solutions of difference equations (+). Moreover, the maximum number of distinct orders which are less than 1 of transcendental entire solutions of difference equations (+) are shown. In addition, for any given rational number $0<ρ<1$, we can construct a linear difference equation with polynomial coefficients which has a transcendental entire solution of order $ρ$. At least, some examples are illustrated for our main theorems.

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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