矩阵方程AV+BW=EVF的一种新的解析通解

该文给出了矩阵方程AV+BW=EVF的一种新的解析通解。该通解是一组自由参向量的显式线性表示，其系数阵是依赖于矩阵F的特征值的数值矩阵。因通解中仅含数值矩阵计算，这为应用计算机求解创造了方便。     

矩阵方程的通解及其结构

本导出了齐次矩阵方程的基础解阵形式通解，还得出了非齐次矩阵方程上有广义逆矩阵形式通解一个充分必要条件。     

矩阵方程的通解及其结构

本文导出了齐次矩阵方程的基础解阵形式通解 ,还得出了非齐次矩阵方程具有广义逆矩阵形式通解的一个充分必要条件 .     

广义逆矩阵A~-的计算方法及应用

根据广义逆矩阵(减号逆)的定义AA-A=A,给出了求任意矩阵A的一个或全部广义逆矩阵A-的计算方法.当A-为A的全部广义逆矩阵时,得出了矩阵方程(或线性方程组)AX=B的统一通解公式X=A-B.     

用矩阵的方法求解常系数齐次线性差分方程

将常系数齐次线性差分方程改写为矩阵与向量乘积形式的递推关系,通过计算若当矩阵的幂,并运用相似矩阵的理论给出了常系数齐次线性差分方程通解的解析形式.     

用初等行变换求线性矩阵方程的通解

本文通过建立通解矩阵的概念 ,给出了用初等行变换求线性矩阵方程 Am× n Xn× s=Bm× s的通解的方法 .     

求解四元数矩阵方程X-AXB=CY+D的一种新方法（英文）

提出了四元数矩阵的一种实向量表示法,可以结合矩阵的半张量积研究四元数矩阵方程.给出了四元数矩阵方程X-AXB=CY+D的最小二乘Hermitian解的通解表达式,以及该方程具有Hermitian解的充要条件,通过数值实验,验证该方法的有效性.     

r-循环线性系统求解的快速算法

本文给出r-循环线性系统求解的一种快速算法.当r-循环矩阵非奇异时,该快速算法求出该线性系统的唯一解;当r-循环矩阵奇异时,该快速算法求出该线性系统的通解.     

基于广义的Sylvester实四元数矩阵方程（英文）

基于广义Sylvester实圆元数矩阵方程组的解■当A_i,B_i和C_i(i=1,2,3)是被复数矩阵给定的,X,Y,Z和W是可变矩阵.计算耦合广义S_ylvester实四元数矩阵方程组的通解W的秩的极值.     

与多通道正交小波滤波器相关的矩阵扩充的通解

本文研究了一类与多通道正交小波滤波器相关的矩阵方程。运用多相位分解的方法，获得了这类矩阵方程的通解。借助于该结果，可以从一组多通道正交小波能够产生许多组多通道正交小波。     

New travelling wave solutions for a nonlinearly dispersive wave equation of Camassa-Holm equation type

In this paper, the integral bifurcation method is used to study a nonlinearly dispersive wave equation of Camassa-Holm equation type. Loop soliton solution and periodic loop soliton solution, solitary wave solution and solitary cusp wave solution, smooth periodic wave solution and non-smooth periodic wave solution of this equation are obtained, their dynamic characters are discussed. Some solutions have an interesting phenomenon that one solution admits multi-waves when parameters vary.     

多目标规划问题的强均衡解

用可变权方法引进了多目标规划问题的强均衡解并证明它是多目标规划的Pareto解,通过求解可变权综合问题而获得任一单目标都不会最小的Pareto解,这种解在可持续发展规划中具有重要意义。     

Mathematical studies of the solution of Burgers' equations by Adomian decomposition method

In this paper, a novel Adomian decomposition method (ADM) is developed for the solution of Burgers' equation. While high level of this method for differential equations are found in the literature, this work covers most of the necessary details required to apply ADM for partial differential equations. The present ADM has the capability to produce three different types of solutions, namely, explicit exact solution, analytic solution, and semi-analytic solution. In the best cases, when a closed-form solution exists, ADM is able to capture this exact solution, while most of the numerical methods can only provide an approximation solution. The proposed ADM is validated using different test cases dealing with inviscid and viscous Burgers' equations. Satisfactory results are obtained for all test cases, and, particularly, results reported in this paper agree well with those reported by other researchers.     

合成展开法求解圆薄板大挠度问题

本文用合成展开摄动法,把外场解和内层解结合起来,求解圆薄板大挠度问题.本文把Hencky的薄膜解当作外场解的一级近似解,并求出了外场解的二级近似解.利用边界内层坐标,求得了相应的各级内层解,即边界层解.本文采用最大位移和板厚之比的倒数作为小参数,所得结果大大改进了1948年作者所得的结果.     

二阶非线性奇摄动方程脉冲状空间对照结构

该文对一类二阶非线性奇摄动方程进行研究, 指出该方程在一定条件下可以产生脉冲状空间对照结构, 并用边界函数法构造该问题的渐近解, 证明解的存在性并得到渐近解的误差估计.     

GLOBAL EXISTENCE OF THE SOLUTION FOR THE LANDAU-LIFSHITZ EQUATION OF THE FERROMAGNETIC SPIN CHAIN

1IntroductionInthepresentpaper,wecollsidertileLandau-LifSllitzequationoftileferromagneticspinchainwhichtakestheform:where"x'ldenotesthevectorcrossproductinR',fi=(--D,D),D>0,u=(ul,u3,u3):fixR -R3istilespinvector,or>0isaGilbertdampingconstant,Pisarealparameter,J=diag(ri,acfac)isaconstantmatrix.TheaboveequationarisesinthedoublyanisotropicHeisenbergspinsystem.Thissystemisimpliedbytileconservationofenergyandmagnitudeofu.SeeDanielandLab.hmanan[1]please.Insomeferromagneticchainsystems,thematri…     

The Algorithm to Locate the Optimal Solution for Production System Subject to Random Machine Breakdown and Failure in Rework for Supply Chain Management

A lot of researchers try to use the conditional convexity to develop their solution procedure to locate the optimal solution. However, this paper indicates that the solution procedure to locate the optimal solution based on the conditional convexity has logical shortcomings from a mathematics point of view. So, the main purpose of this paper will provide the alternative approach to develop a recursive algorithm for determining the optimal solution without using the conditional convexity. Finally, this paper improves many existing articles.     

Analytical solution of the damped Helmholtz–Duffing equation

In this paper, we derive a class of analytical solution of the damped Helmholtz–Duffing oscillator that is based on a recently developed exact solution for the undamped case. Our solution procedure indicates that this solution holds for specific system parametric choice values.     

An achievement rate approach to linear programming problems with an interval objective function

In this paper, we focus on a treatment of a linear programming problem with an interval objective function. From the viewpoint of the achievement rate, a new solution concept, the maximin achievement rate solution, is proposed. Nice properties of this solution are shown: a maximin achievement rate solution is necessarily optimal when a necessarily optimal solution exists, and if not, then it is still a possibly optimal solution. An algorithm for a maximin achievement rate solution is proposed based on a relaxation procedure together with a simplex method. A numerical example is given to demonstrate the proposed solution algorithm.     

Analytical solution for laterally loaded long piles based on Fourier–Laplace integral

Piles are frequently used to support lateral loads. Elastic solutions based on the Winkler foundation model are widely used to design laterally loaded piles at working load. This paper reports a simplified analytical solution for laterally loaded long piles in a soil with stiffness linearly increasing with depth. Based on a Fourier–Laplace integral, a power series solution for small depth and a Wentzel–Kramers–Brillouin (WKB) asymptotic solution for large depth are derived. By using this analytical solution, the deflection and bending moment profiles of a laterally loaded pile can be obtained through simple calculation. The proposed power series solution is exact for infinitely long piles. Numerical examples show that this solution agrees well with other existing methods on predicting the deflection and bending moment of laterally loaded piles. The WKB asymptotic solution developed in this study has never been introduced before. The simplified analytical solution obtained in this study provides a better approach for engineers to analyze the responses and design of laterally loaded long piles.