一类中立型时滞差分方程的正解

Positive Solutions of a Class of Neutral Delay Difference Equations

研究一类中立型时滞差分方程面 的正解，获得了方程存在最终正解以及非增正解的充要条件，建立了比较定理．

This paper is concerned with the positive solutions a class of neutral type delay difference equations necessary and sufficient conditions for the existence of eventually positive solutions and positive nonincreasing solutions are obtained.Various type of comparison theorems are also derived.