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二阶变系数多变时滞非线性中立型差分方程的频率振动性 被引量:1

Frequent oscillatory criteria for second-order nonlinear neutral difference equations with variable coefficients and several variable delays
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摘要 应用频率测度方法,研究一类二阶变系数多变时滞非线性中立型差分方程Δ2(x(n)+∑mj=1pj(n)x(rj(n)))+∑li=1qi(n)gi(x(si(n)))=0,n≥n0的频率振动性,得到了此类方程新的频率振动判别准则,并举例对主要结果加以说明。 Consider a kind of second-order nonlinear neutral difference equations with variable coefficients and several variable delays :△^2(x(n)+∑j=1^mpj(n)x(rj(n)))+∑i=1^lqi(n)gi(x(si(n)))=0,n≥n.Based on the frequency measure method, some new frequent oscillatory criteria of the equation are established. An example is considered to illustrate our main results.
出处 《黑龙江大学自然科学学报》 CAS 北大核心 2011年第6期779-783,共5页 Journal of Natural Science of Heilongjiang University
基金 国家自然科学基金资助项目(60604004) 河北省自然科学基金数学研究专项项目(07M00005) 秦皇岛市科技支撑计划项目(201001A037201101A168)
关键词 中立型差分方程 变时滞 非线性 频率振动 频率测度 neutral difference Equation variable delay nonlinear frequent oscillation frequency measure I
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