查询词典 asymptotic expansion

Approximate methods have been developed, including the method of averaging, boundary layer method, methods of matched asymptotic expansion and multiple scales and so on.

近似求解方法已被发展，包括平均法，边界层法，匹配渐近展开和多尺度法等等。

To make our approach to be practical, we also discuss the asymptotic expansion of the operator in chapter 6 which is based on the non-abelian Stokes theorem.

但是由于格点上的算符是path-order变量的乘积，并且其构成非常复杂，按照正常的方式展开实际上是不可能的，为了使我们的算法实际可行，本文接着讨论了格点上算符的渐近展开问题，并且给出了基于non-abelStokes定理的方法，这种方法克服了以前各种办法的缺点，并且简单可行，适用于任意的Wilson算符。

The likelihood ratio criterion of sphericity test, its asymptotic expansion and limiting distribution are obtained.

第二部分：考虑广义球形检验问题。论文得到了这个问题的检验准则，并给出了它的渐进展开。

Now by integrating (36) by parts repeatedly and using the boundary condition ψ=0 and s=1, the asymptotic expansion for ψis F=xyz.

现在反复对(36)进行分部积分，并使用 s=1 时ψ=0 这一边界条件，则得到ψ的渐进展开式 F=xyz。

The existence and stability of co-exist periodic solutions are investigated by using the bifurcation theory, the implicit function theorem and the method of asymptotic expansion.

运用分歧理论、隐函数定理以及渐近展开的方法，获得了共存周期解的存在性与稳定性的结果。

Firstly, the Voronovskaja type formula of asymptotic expansion of this kind of operators is given. Then the approximation of the bounded variation functions by the kinds of operators is discussed.

第一节给出该算子的Voronovskaja型渐近展开公式；第二节讨论该算子对有界变差函数的逼近。

The asymptotic expansion of the kernel function K for large z andgeneral formulae of its coefficients have been derived and used in calculatingresistance.

本文的主要贡献在于推导了 z为大值时核函数 K的渐近展开式及其系数的通项公式，并用于阻力计算中。

The finite element method is combined with homogenization theory based on asymptotic expansion for predicting the macro and microscopic properties of cellular material s.

本文把均匀化理论与有限元法相结合，应用于多孔材料的弹性本构数值模拟，利用位移渐进展开建立了均匀化有限元列式。

By introducing proper stretchy variable and constructing boundary layer function, it concludes N-order approximate solution, and using theory of differential inequality, uniformly validity of asymptotic expansion is proved.

通过引进适当的伸长变量，构造边界层函数，得到了解的N阶近似值，并利用微分不等式理论证明了解的渐近展开式的一致有效性。

In this paper , for a co-dimension two-bifurcation system that is on a three-dimensional central manifold and subjected to a parametric excitation by a white noise , the asymptotic expansion of the maximal Lyapunov exponent is evaluated.

为了分析白噪声参数激励对三维中心流形上一类余维2分岔系统的影响，本文基于一维扩散过程的奇异点理论，通过使用 L。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了