此外，作者还给出了一类具有连续变量的偏差分方程的振动准则。
Furthermore, the author gives the oscillation criteria of some partial difference equation with continuous variables.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件。
The present paper deals with the sufficient and necessary condition of the final positive solutions of non-linear partial-difference equations and first presents the comparison theorem.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件 。
Non-existence of eventually positive solution of difference inequality with several delay quantities;
本文讨论了一类半线性偏差分方程解的振动性，得到了这类方程解的振动性的一些充分条件。
This paper is concerned with oscillation of solutions of a class of nonlinear partial difference equations. Some sufficient conditions of oscillation for the equations have been obtained.
第二章主要是研究某些类型的线性或非线性的带有离散时滞的偏差分方程解的振动性的判别法。
In the second part, we mainly consider oscillations of solution of some linear and nonlinear partial difference equations with discrete variables and delays.
给出系统振动的比较定理，利用比较定理讨论了一类非线性偏差分方程的振动性，给出简单的判别条件及证明。
By means of the comparison theorem, and the oscillation of some non-linear partial difference equations is discussed and some concise conditions and authenticity are given.
给出系统振动的比较定理，利用比较定理讨论了一类非线性偏差分方程的振动性，给出简单的判别条件及证明。
By means of the comparison theorem, and the oscillation of some non-linear partial difference equations is discussed and some concise conditions and authenticity are given.
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