中立型脉冲发展方程解的存在性和唯一性

本文研究了一类非线性中立型脉冲发展方程解的存在性和唯一性的问题.利用迭代分析方法结合半群理论的知识,得到了其解的表达式,并构造解的迭代序列,同时证明了其解的存在性和唯一性.通过研究发现其解的存在性和唯一性与脉冲时滞条件密不可分,利用迭代分析法求解此类问题具有一定的优越性.     

中立型无限时滞带跳随机泛函微分方程解的存在唯一性

本文首先在Lipschiz条件和线性增长条件下,通过Picard迭代法研究了带跳的无限时滞中立型随机微分方程解的存在唯一性,接着对这这类方程的Picard迭代解与精确解的误差进行估计,最后讨论了解的矩估计。     

含间断项的微分方程终值问题的拟上下解方法

在不涉及紧型条件的情形下,利用半序理论和混合单调迭代技术研究了Banach空间中含间断项的一阶微分方程终值问题解的存在唯一性;并给出逼近解迭代序列的误差估计.     

一类带Poisson跳的模糊随机森林扩散系统解的存在性与唯一性

介绍了一类带Poisson跳的模糊随机森林扩散系统,它同时受随机和模糊两种不确定因素的影响.在有界条件(弱于线性增长条件)和Lipschitz条件下,运用Picard迭代法证明了系统解的存在性与唯一性,并且给出Picard迭代近似解误差的估计式.     

新的二元算子方程组解的存在唯一性定理

利用锥理论和单调迭代方法,在更一般的条件下得到了一类新的不具有连续性和紧性条件的非单调二元算子方程组解的存在唯一性,并给出迭代误差估计,所得结果改进和推广了最近的一些已知结果.     

非单调算子方程组解的存在唯一性及其应用

在Banach空间中不具有连续性和紧性的条件下讨论了一类非单调算子方程组解的存在唯一性及迭代收敛性,并且应用到Hammerstein型积分方程中．     

一类分数阶积分边值问题解的存在唯一性

利用不动点方法,研究了一类分数阶微分方程积分边值问题,在Lipschitz条件下,得到了非平凡解的存在唯一性,并给出唯一解的迭代序列.所得结论推广和改进了近期这方面的一些结果.     

Banach空间二阶周期边值问题的一种拟上下解方法

利用比较结果,通过构造L-拟上下解的单调迭代过程,在L-拟上下解反序的情形下,研究了Banach空间二阶周期边值问题解的存在性,并获得该问题解的存在性与唯一性结果.     

带有变指数拟线性椭圆方程组的边界爆破解

研究了在光滑有界域中带有变指数的拟线性椭圆方程组,且该方程组满足边界爆破的条件,在常指数的基础上进一步深入讨论了变指数的情况.主要运用了构造上下解和迭代的方法证明了边界爆破解在临界与次临界条件下,解的存在性,唯一性以及边界行为.     

可数多个Brown运动驱动的带跳随机微分方程

本文研究了由可数个Brown运动驱动的带跳随机微分方程.利用线性逼近(即Picard迭代)方法,在非Lipsclritz系数的条件下得到该类方程的解的存在性及唯一性.     

Monotone iterative method for the second-order three-point boundary value problem with upper and lower solutions in the reversed order

This article introduces a new concept of upper and lower solutions and studies the existence and uniqueness of solutions of second-order three-point boundary value problems with upper and lower solutions in the reversed order. The sufficient conditions for the existence and uniqueness of solutions are obtained by using the monotone iterative method, meantime, the iterative sequence for solving a solution and its error estimate formula under the condition of unique solution are given. Some results of previous literature are extended and improved. A numerical example is also included to illustrate the effectiveness of the proposed results.     

Existence and uniqueness of solutions of second-order three-point boundary value problems with upper and lower solutions in the reversed order

This paper studies the existence and uniqueness of solutions of second-order three-point boundary value problems with lower and upper solutions in the reversed order, obtains the sufficient conditions for the existence and uniqueness of solutions by use of the monotone iterative method, and gives the iterative sequence for solving a solution and its error estimate formula under the condition of unique solution.     

分数阶p-Laplacian边值问题正解的存在唯一性

运用Schauder不动点定理和上下解方法研究了一类分数阶p-Laplacian边值问题正解的存在性和唯一性,并给出了唯一解的迭代序列.     

Monotone method for initial value problem for fractional diffusion equation

Using the method of upper and lower solutions and its associated monotone iterative, consider the existence and uniqueness of solution of an initial value problem for the nonlinear fractional diffusion equation.     

Existence and uniqueness of positive solutions for singular nonlinear elliptic boundary value problems

In this paper we establish the existence and the uniqueness of positive solutions for Dirichlet boundary value problems of nonlinear elliptic equations with singularity. We obtain the existence and the uniqueness by using the mixed monotone method in the cone theory. Moreover, we give an iterative method of constructing the solution. The rate of convergence of the iterative sequence is analyzed.     

一类非单调算子方程解的存在性定理

运用锥理论与非对称迭代方法,得到了Banach空间不具有单调性、连续性和紧性条件的一类算子方程解的存在唯一性,并给出了迭代序列收敛于解的误差估计.所得结果改进和推广了增(减)算子方程的某些已知结果.     

ANTI-PERIODIC BOUNDARY VALUE PROBLEM FOR FIRST ORDER DELAY DIFFERENTIAL EQUATIONS

The authors employ the method of upper and lower solutions coupled with the monotone iterative technique to obtain some results on the existence and uniqueness of the solution for anti-periodic boundary value problem of delay differential equations.     

Banach空间中一类非单调算子方程解的存在性定理

运用锥理论与非对称迭代方法,得到了Banach空间不具有单调性、连续性和紧性条件的一类算子的不动点的存在唯一性,并给出了迭代序列收敛于解的误差估计,所得结果改进和推广了增(减)算子方程的某些已知结果.     

Existence and uniqueness of positive solutions for higher order nonlocal fractional differential equations

By means of a monotone iterative technique, we establish the existence and uniqueness of the positive solutions for a class of higher conjugate-type fractional differential equation with one nonlocal term. In addition, the iterative sequences of solution and error estimation are also given. In particular, this model comes from economics, financial mathematics and other applied sciences, since the initial value of the iterative sequence can begin from an known function, this is simpler and helpful for computation.     

Positive solutions for a nonlinear discrete fractional boundary value problem with a $p$-Laplacian operator

In this paper using the monotone iterative technique we establish the existence and uniqueness of positive solutions for a nonlinear discrete fractional boundary value problem with a $p$-Laplacian operator. Also we discuss an iterative sequence which yields the approximate solution for this problem.