文章详细信息 关键词： 中立型时滞差分方程;;最终正解;;非线性 [gap=319]Keywords: neutral delay difference equations;eventually positive solution;nonlinear
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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;
按完备基展开一级修正解，利用消除“久期”项的条件，给出孤子参数的演化方程并最终得到计算一级修正的公式。
The evolution equations of the soliton parameters are given from conditions eliminating secular terms, and then the first-order correction is eventually obtained.
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