研究了具有边界摄动的二次方程奇摄动问题。
In this paper, the singularly perturbed problems for a class of second degree equations with boundary perturbation are considered.
讨论了一类超抛物型方程的非线性奇摄动问题。
A class of nonlinear singularly perturbed problem with ultra parabolic equation are considered.
研究小干扰力作用下约束哈密顿系统对称性的摄动问题。
The perturbation problem of symmetries for constrained Hamiltonian systems under the action of small excitation is studied.
本文提出了求解摄动问题的一种新方法——变分迭代算法。
In this paper, a novel method called the variational iteration method is proposed to solve perturbation problems.
本文应用奇异摄动理论和方法研究了含有分数阶导数的两类奇异摄动问题。
In this paper, We use the singular perturbation theory and method to study the two types of singular perturbation problems with fractional derivative.
本文对双曲-抛物偏微分方程奇异摄动问题构造了一个指数型拟合差分格式。
In this paper we constructed an exponentially fitted difference scheme for singular perturbation problem of hyperbolic-parabolic partial differential equation.
本文研究一类拟线性双曲—抛物型方程具有非线性初边值条件的奇摄动问题。
This paper deals with the singularity perturbed problem of a class of quasilinear hyperbolic-parabolic type equations subject to nonlinear initial-boundary value conditions.
本文研究一类拟线性椭圆—抛物型方程，具有非线性边值条件的奇异摄动问题。
In this paper, we consider singularity perturbed problem for a kind of quasilinear elliptic-parabolic type equation with nonlinear boundary value conditions.
讨论奇摄动常微分方程系统的二点边界值问题，这是奇摄动问题中较难的部分。
In this paper a two-point boundary value problem for a system of singularly perturbed ordinary differential problems is considered. It is the most complicated problem in singularly perturbed equation.
他们的结果表明：用重正化群方法来处理奇异摄动问题，比用传统的方法更简单更有效。
Their results show that: a group approach to the restructuring of singular perturbations, simpler than using traditional methods more effective.
然而，已有的孤立特征值摄动法和重特征值摄动法都难于用来解决密集模态的摄动问题。
However, the perturbation methods for distinct or repeated eigenvalues can not be directly used to deal with the vibration modes with close eigenvalues.
本文介绍了求解奇异摄动问题的一种有效方法——边界层函数法，并用此方法研究了在薄矩形板中的热传导问题。
In this paper, the boundary layer function method, an effective method for the solution of singular perturbation, was presented and used to deal with the heat transfer in thin rectangular plates.
将离散系统振动分析中的通用的矩阵摄动法推广到连续系统。 采用弹性结构理论算子，对连续系统的振动特征值摄动问题进行统一描述。
A united solution procedure for eigenvalue perturbation problem in structural vibration analysis of continuous systems is proposed with the aid of operator operation.
用线化法，权残法和插值摄动法相结合的方法求得了一类有正阻尼的强非线性振动问题的近似瞬态解，精度好。
In this paper, using the interpolation perturbation method, the authors seek to solve two classes of weakly nonlinear oscillations.
用线化法，权残法和插值摄动法相结合的方法求得了一类有正阻尼的强非线性振动问题的近似瞬态解，精度好。
In this paper, using the interpolation perturbation method, the authors seek to solve two classes of weakly nonlinear oscillations.
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