证明当分布时滞的核函数取弱核形式时,平衡点是绝对渐近稳定的。
When the kernel function of the distributed delay takes the form weak kernel, the positive equilibrium is Absolutely asymptotically stable.
本文用适当的多项式函数近似扩散光波导的高斯折射率分布函数,推导了导模有效折射率的解析形式渐近解。
The Gaussian index profile of a diffused optical waveguide is approximated by an appropriate polynomial, and the asymptotic solutions of the mode efficient index is derived in a analytical form.
利用一种新的橡胶材料应变能函数,对橡胶楔体与刚性缺口接触大变形问题进行了分析。得到了楔体尖端场的渐近方程,对渐近方程进行了数值分析,得到了尖角附近应力及变形分布。
A new strain energy function was used to analyze a rubber wedge contact with a rigid notch. We found the asymptotic equations near wedge tip, and solved the equations with numeric method.
对相依时间序列数据,在一定的条件下已有人证明了局部多项式加权回归系数估计服从渐近正态分布,其中核函数是有界的。
Fan J and Gijbels I gave the asymptotic normality of local polynomial regression estimation in dependent time series, where the weighted function is bounded.
对相依时间序列数据,在一定的条件下已有人证明了局部多项式加权回归系数估计服从渐近正态分布,其中核函数是有界的。
Fan J and Gijbels I gave the asymptotic normality of local polynomial regression estimation in dependent time series, where the weighted function is bounded.
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