Boundary Value Problems for Second-order Integro-differential Equations in Banach Spaces

This paper investigates the maximal and minimal solutions of initial value problems for second order nonlinear integro-differential equations of Volterra type on a finite interval in a Banach space by establishing a comparison result and using the monotone iterative technique.

Stability for Functional Differential Equations with Delay in Banach Spaces

In this paper, using Sadovskii’s fixed point theorem and properties of the measure of noncompactness, we obtain asymptotic stability results for solutions of nonlinear differential equation with variable delay. Results presented in this paper extend some previous results due to Burton?[1], Becker and Burton?[2], Ardjouni and Djoudi [3], and Jin and Luo?[4].

Solving Fractional Differential Equations via Fixed Points of Chatterjea Maps

In this paper,we present the existence and uniqueness of fixed points and common fixed points for Reich and Chatterjea pairs of self-maps in complete metric spaces.Furthermore,we study fixed point theorems for Reich and Chatterjea nonexpansive mappings in a Banach space using the Krasnoselskii-Ishikawa iteration method associated withSλand consider some applications of our results to prove the existence of solutions for nonlinear integral and nonlinear fractional differential equations.We also establish certain interesting examples to illustrate the usability of our results.

Periodic Solutions of Integro-Differential Equations

The aim of this work is to study the existence of periodic solutions of integro-differential equations , (0 ≤ t ≤ 2π) with the periodic condition x(0) = x(2π) , where a ∈ L1 (R+). Our approach is based on the M-boundedness of linear operators Bsp,q-multipliers and some results in Besov space.

ODEs IN BANACH SPACES AND FIXED POINTS OF WEAKLY INWARD MAPS

This paper is an attempt to investigate systematically fixed points of weakly inward maps by using some basic results from differential equations in Banach spaces. By investigating the Poincare operators for such differential equations, we establish a fixed point index theory for two classes of weakly inward maps.

G-Contractive Sequential Composite Mapping Theorem in Banach or Probabilistic Banach Space and Application to Prey-Predator System and A &H Stock Prices

Theorems of iteration g-contractive sequential composite mapping and periodic mapping in Banach or probabilistic Bannach space are proved, which allow some contraction ratios of the sequence of mapping might be larger than or equal to 1, and are more general than the Banach contraction mapping theorem. Application to the proof of existence of solutions of cycling coupled nonlinear differential equations arising from prey-predator system and A&H stock prices are given.

INITIAL VALUE PROBLEMS FOR SECOND ORDER IMPULSIVE INTEGRO-DIFFERENTIAL EQUATIONS IN BANACH SPACES

This paper investigates the maximal and minimal solutions of initial value problem for second order nonlinear impulsive integro differential quation in a Banach space by establishing a comparison result and using the upper and lower solutions.

Existence Solution for 5th Order Differential Equations under Some Conditions

We study a nonlinear differential equations in the Banach space of real functions and continuous on a bounded and closed interval. With the help of a suitable theorems (fixed point) and some boundary conditions, the 5th order nonlinear differential equations has at least one positive solution.

BOUNDARY VALUE PROBLEM FOR NONLINEAR IMPULSIVE INTEGRO-DIFFERENTIAL EQUATION IN BANACH SPACE

In this paper, by establishing a new comparison result and using the monotone iterative technique, the existence of maximal and minimal solutions of the boundary value problem for second-order impulsive differential equation which depends on x’ in Banach space is obtained.

Banach空间中复合刚性Volterra泛函微分方程隐显Euler方法的稳定性分析

刚性泛函微分方程数值方法的研究大多是在内积空间中基于单边Lipschitz常数具有适度大小的条件下进行;然而对于某些刚性问题,其单边Lipschitz常数却不可避免地取非常巨大的正值。因此有必要突破内积空间和单边Lipschitz常数的限制,直接在Banach空间中探讨相应的数值方法。针对Banach空间中的非线性复合刚性Volterra泛函微分方程,对其非刚性部分采用显式Euler方法求解,刚性部分采用隐式Euler方法求解,得到了求解该问题的隐显Euler方法,论证了方法的稳定性和渐近稳定性。数值试验结果验证了所获理论的正确性。

REMARKS OF DIFFERENTIAL EQUATIONS ON CLOSED SUBSETS IN A BANACH SPACE

We give some extensions of Monch-Harton inequalities with respect to measures of noncompactness. As an example of the application, we obtain two existencetheorems of solutions for Cauchy problems of differential equations on closed setsunder weaker compactness conditions.

Banach空间中二阶非线性微分积分方程周期边值问题

本文通过建立一个新的比较定理,给出了 Banach 空间中含有导数项 u 的二阶非线性微分积分 方程周期边值问题最大解和最小解的存在性。

Banach空间中非线性刚性DDEs θ-方法渐近稳定性

科学与工程技术中存在大量刚性问题,尽管问题本身是整体良态的,但当使用内积范数时,其最小单边 Lipschitz 常数却不可避免地取非常巨大的正值,导致基于此常数下建立的数值稳定性理论失效。针对求解 Banach 空间中一类非线性刚性延迟微分方程初值问题的线性和单支θ -方法建立了渐近稳定的充分条件,即使按内积范数其单边 Lipschitz 常数十分巨大的问题仍有可能属于这类问题,因而所建立的结果对于这些问题同样是适用的。

Banach空间一阶脉冲微分积分方程组初值问题的解

研究了Banach空间非线性一阶脉冲微分积分方程组初值问题解的存在性,改进并推广了近期的一些结果.

Banach空间二阶积-微分方程组初值问题

该文利用新的比较结果研究Banach空间二阶积-微分方程组初值问题解的存在性.即使在有限维空间,其结果也是新的.

Banach空间常微分方程理论的若干问题

本文综述了Ｂａｎａｃｈ空间常微分方程理论近期的发展，主要为紧型条件、耗散型条件、非线性半群、上下解方法、边值问题、Ｂａｎａｃｈ空间中的积－微分方程和脉冲方程，以及对于不动点理论和临界点理论的应用，并且给出了作者们在这一领域中的一些新结果．

Banach空间二阶非线性脉冲积分-微分方程初值问题

该文在较宽松的条件下,利用不动点理论,得到了Banach空间中二阶非线性脉冲积分-微分方程初值问题解的存在性定理．作者去掉了脉冲项的紧性和增长性限制,因而本质上改进和推广了某些现有的结果．

Banach空间中二阶脉冲微分-积分方程的解

该文利用不动点定理研究了Ｂａｎａｃｈ空间中二阶脉冲微分－积分方程初值问题解的存在性，推广了文［１］中的结果．

Banach空间中二阶积分-微分方程的初值问题(英文)

使用锥理论及单调迭代技术,首先讨论了Banach空间中一阶积分-微分方程初值问题的最小最大解的存在性,并在此基础上讨论了带有一阶微分项的二阶积分-微分方程初值问题的最小最大解的存在性.

Banach空间积-微分方程初值问题解的存在性

研究了有序Banach空间积 微分方程初值问题解的存在性 ,利用一个新建立的积分 微分不等式及单调迭代方法 。