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- Using the difference equations, we can try to reconstruct the deep past. 我们可以尝试使用差分方程式重建非常久远以前的历史。
- Previous chapters have dealt with the derivation of systems of difference equations. 前面几章已经论述了差分方程组的推导。
- The difference equations derived will now contain integrals with respect to time because of the convolutions involved. 由于包含卷积,所推导的差分方程包括对时间的积分。
- An example shows that some of these results have important applications in difference equations. 并给出一个例子,说明其中有些结果在差分方程中有重要的应用。
- From the example, we are more acquainted with the oscillations of solutions of the partial difference equations. 通过具体的例子使我们对差分方程有进一步的理解。
- Naturally, people ask if the property of difference equations is the same as that of differential equations. 人们会问差分化后的差分方程,其性质与原来的微分方程是否相同。 许多经验表明,微分方程的许多性质经差分化后是保留下来了。
- The finite difference equations was deduced using three dimensional control volume method. 用三维控制容积法推导了传热、导电的有限差分方程。
- The asymptotic stability of a family of vector difference equations with multi-delays is studied. 摘要讨论了一类具有多时滞的向量差分方程的渐近稳定性。
- By means of the comparison theorem, and the oscillation of some non-linear partial difference equations is discussed and some concise conditions and authenticity are given. 给出系统振动的比较定量,利用比较定理讨论了一类非线性偏差分方程的振动性,给出简单的判别条件及证明。
- So far there are few results on the exponential stability in mean square for impulsive stochastic difference equations with continuous time. 研究了连续变量型随机脉冲差分方程的均方指数稳定性,可以弥补此问题的空白。
- In this paper we consider the singularly perturbed boundary value problems for a class of quasilinear difference equations. 摘要本文考虑一类拟线性奇异摄动差分方程的数值解法。
- In this letter, based on the dynamic and difference equations describing an electro optical bistable system with a long delay in the feedback loop. 从带有延时反馈回路的混合型电光双稳系统的动力学方程及差分方程出发,数值计算并分析了长延时下该系统存在的动态存储的最高谐波数。
- The authors obtain sufficient conditions for the oscillation of all solutions of the neutral difference equations with continuous arguments. 讨论了具连续变量中立型差分方程;获得了该方程所有解振动的充分条件.
- The linear finite difference equations were solved to evaluate the carrying capacity of point-supported insulating glass units. 通过线性有限差分方程,研究点支式中空玻璃外内片承载比例等承载性能。
- Varieties of information of the glasa meting furnace vvere obtained by solute a number of the matrix which is consist of a number of difference equations. 证明了数学模拟能够对池炉内部情况进行较为全面、准确的描述。
- This paper gives several non-linear difference equations based on the orthogonality,regularity and standardity of the orthogonal wavelet with compact support. 摘要 从紧支撑正交小波滤波器的正交性、规范性及正则性条件出发,获得了求解滤波器系数的非线性差分方程组,并采用最优化方法求解。
- Sufficient conditions for the uniform stability and uniformly asymptotic stability of the zero solution of the nonliear nonautonomous delay difference equations are obtained. 得到了一类非线性非自治时滞差分方程的零解一致稳定及一致渐近稳定的充分条件。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- Baaed on the fixed point theorem of two-point extension type, sufficient conditions are derived for the existence of positive periodic solutions of delay difference equations. 摘要利用两点拉伸型不动点定理给出一阶时滞差分方程周期解存在性的充分条件。
- There has been much progress on the qualitative properties of difference equations, which include results on stability and attractivity, results on oscillation and other topics. 关于差分方程定性性质(稳定性、吸引性、振动性等)的研究成果很多,但关于差分方程周期解的研究成果相对较少,其主要原因是缺乏必要的工具处理离散系统周期解存在性问题。