二阶时滞偏差分方程振动的充分必要条件

Necessary and Sufficient Conditions for Oscillations of Second Order Delay Partial Difference Equations

本文主要研究了二阶时滞偏差分方程振动的充分必要条件和振动性的一些判刑准则．

This paper is concerned with the delay partial difference equation where a,b,d,qi are real numbers, ki and li are nonnegative integers, u is a positive integer. Sufficient and necessary conditions for all proper solutions of (1) to be oscillatory are obtained.