该方法基于非线性积分方程,用正则化方法求出电导率分布。
The method, based on nonlinear integral equation, is used to solve for the formation conductivity profile by using regularization.
利用不动点理论,给出了一类非线性积分方程正的遍历解存在的充分条件。
Applying fixed points theorem, we give the sufficient conditions of the existence of positive ergodic solutions for a class of infinite nonlinear integral equations.
应用格林函数方法,将波纹膜片的非线性边值问题化为非线性积分方程进行求解。
The nonlinear boundary value problem of the corrugated diaphragm reduces to the nonlinear integral equations by applying the method of Green's function.
其次,给出了我们的结果对非线性随机积分和微分方程的某些应用。
Next, some applications of our results to nonlinear random integral and differential equations are given.
本文利用不动点理论,给出了一类非线性延迟积分方程正的概周期型解的存在性条件。
In this paper, we give the conditions of existence of positive almost periodic type solutions for some nonlinear delay integral equations.
导出的非线性微分方程存在解析积分,从而得出转体运动的一般规律,计算结果与数值积分结果相一致。
The general characteristics of the turning motion are obtained, and the results of the analytic calculation agree with those of numerical integration.
本文提出了解非线性边值问题的边界积分方程的高精度机械求积法。
This paper presents mechanical quadrature methods for solving the boundary integral equations of nonlinear boundary value problems.
将小波配置法与广义能量积分相结合,提出了一种求解非线性偏微分方程的高精度数值方法。
A high accuracy algorithm for numerical solution of nonlinear partial differential equation (PDE) is suggested combining wavelet collocation method with generalized energy integral.
结果得到了一组带有一个关于单粒子光谱自洽条件的耦合的,非线性的重子自能的积分方程。
The result is a set of coupled, nonlinear integral equations for the baryon self-energy with a self-consistency condition on the single-particle spectrum.
利用精细积分技术对同伦摄动方法进行了改进,构造了一种求解非线性动力学方程的新的渐近数值方法。
A new asymptotic numerical method for nonlinear dynamic equations was proposed. In this method, the homotopy perturbation method was improved by using the precise integration technique.
本文提出了一类含积分的非线性方程的数值算法,并讨论了算法的收敛性。
In this paper, we introduce the numerical solution of nonlinear equation with a integration and discuss the convergence of algorithm.
考虑了一类关于两个参数的微分积分方程非线性边值问题的奇摄动。
A class of singular perturbation of nonlinear boundary value problem for integral differential equation involving two parameters is considered.
导出了描述离子密度变化的非线性的能量积分方程。
The nonlinear energy integral equation describing the evolution of ion density has been derived.
首先将非线性薛定谔方程变形为齐次方程的形式,然后用精细积分法模拟其随时间的演化过程。
First of all, a non-linear Schrodinger equation can be converted into homogeneous equations, and then the precise integration method can be used to solve these problems.
研究复平面单位圆域内一类非线性二维奇异积分方程的可解性。
In this paper, the solvability for a class of nonlinear two-dimensional singular integral equation is considered in unit circular.
讨论具有跳跃非线性项的非正定核积分方程。
This paper deals with indefinite integral equations with jumping nonlinearities.
对欧拉梁的大变形问题进行了深入研究,直接从欧拉梁的非线性挠曲线微分方程,推导出求解梁挠度的一种简便有效的积分表达式。
Large deformation problems of Euler beams are studied. An efficient integration formula for the deflection is deduced directly from the nonlinear differential equation.
研究一类非线性函数积分方程解的存在唯一性。
This paper deals with the existence and uniqueness of the solution of a class of nonlinear functional integral equations.
利用菲涅耳基尔霍夫衍射积分和非线性近轴波动方程,在远场近似及光学薄近似条件下,得出了位相调制产生“热像”出现的位置及强度满足的解析关系。
According to the Fresnel-Kirchhoff diffraction integral and nonlinear paraxial wave equation, we derive the functional relationship of the intensity of hot image and its location.
提出了刚性地基梁非线性分析的积分方程法。
An integral equation method is presented in this paper for the nonlinear analysis of beams on a rigid foundation.
本文提出非线性方程周期解的渐近积分法,并举例说明。
In this paper, a method of asymptotic integral is suggested for determining the periodical solution of a nonlinear equation. Examples are given.
研究一类具有无限时滞的非线性微分积分方程,其概周期解的存在性、唯一性及稳定性等问题。
A study is made on existence and uniqueness and stability of almost periodic solutions to a class of nonlinear integrodifferential equations with finite time lag.
给出非线性方程的二阶向后差分格式稳定性、误差估计。 (4)给出二阶卷积积分的权重。
Given the stability, error estimate and numerical experiments for the nonlinear equation of second order backward difference(4)Given the weighted of second order convolution quadrature.
非线性结构时程分析的高阶单步算法是一种新的求解运动方程的直接积分法。
The high order single step algorithm is a new method of direct integration for solution equations of motion.
用首次积分法,讨论了带奇异边界条件的非线性常微分方程解的存在性、不存在性和唯一性。
By the first integral method, the existence, uniqueness and nonexistence of solutions for some nonlinear ordinary differential equations with singular boundary condition are discussed.
利用时滞脉冲积分不等式,给出了一类非线性的脉冲时滞微分方程的解有界性的充分条件。
Sufficient conditions for boundedness of solutions of nonlinear delay differential equations with impulses are established by using impulsive integral inequalities with a deviation.
本文提出了解非线性边值问题的边界积分方程的高精度机械求积法。
In this paper, the authors present mechanical quadrature methods for solving the boundary integral equations of nonlinear boundary value problems.
针对多自由度非线性动力方程,提出了一种改进的增维精细积分法。
An improved increment-dimensional precise integration method for the nonlinear dynamic equation with multi-degree-of-freedom was proposed.
针对多自由度非线性动力方程,提出了一种改进的增维精细积分法。
An improved increment-dimensional precise integration method for the nonlinear dynamic equation with multi-degree-of-freedom was proposed.
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