具强阻尼非线性双曲型方程的能量收敛性

本文讨论了从细杆的振动中提出的一类非线性双曲型方程的柯西问题的能量收敛性，证明了没有阻尼的解可用阻尼很小的解去逼近。     

一类非线性微分方程的全局吸引性

本研究了一类二阶非线性微分方程模型，利用不等式等技巧，给出了其平衡点全局吸引性的充分条件。     

Autoregressive-asymmetric moving average models for business cycle data

Much business cycle research is based on an assumption of symmetric cycles, though it is frequently argued that the downturns are steeper and more short-lived than the upturns; implying cyclical asymmetries. A new class of nonlinear autoregressive-asymmetric moving average models is introduced. These models are able to deal with symmetric as well as asymmetric phenomena. A likelihood estimation procedure and a Wald test statistic for symmetry are presented. Evidence of asymmetry is found in US real GNP growth rates.     

平面摆非线性振动水平分量方程的建立及其近似解

本文讨论了平面摆在振幅并不是很小情况下的自由运动，推导了运动微分方程在水平方向的投影，用微扰法求解该非线性方程的近似解，并说明运动的频率与振幅有关。     

A NOTE ON NONLINEAR ROBUST H∞ ALMOST DISTURBANCE DECOUPLING PROBLEM WITH STABILITY

1 IntroductionThe problem of a1most disturbance deco1lpling with stability(ADDPS fOr short) was orig-inally formulated and solved fOr linear systems by Willems in l98l([ll). Since then variousgeneralizations to nonlinear systems have been xnade(see, fOr e…     

线性Zakai方程的近似解及其收敛阶数

文中针对非线性滤波问题的有限维逼近中出现的线性 Zakai方程的求解,提出一个递推的算法。当步长为△时,所得的近似解在充分大的概率下,以阶数为△~(1/2)的速率一致收敛于原方程的解。     

非线性回归模型的应用

根据变量之间的非线性关系，应用模型函数进行线性拟合和预测。并对非线性进行度量。     

涉及积分平均的二阶非线性微分方程的振动性

对一般二阶次线性微分方程     

非线性模型内外噪音的统一描述

本文研究非线模型中内、外噪音的统一描述.通过对噪音的实现求平均,得到广义福克-普朗克方程(GFPE).发现从某一阶矩开始,出现内、外噪音的耦合效应.文中还对Verhulst模型进行了具体的讨论.