共查询到16条相似文献,搜索用时 46 毫秒
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一类具有非局部边界条件的反应扩散方程奇摄动问题 总被引:8,自引:0,他引:8
该文研究了一类具有非局部边界条件的奇摄动反应扩散初始边值问题。在适当的条件下,利用比较定理讨论了问题解的渐近性态。 相似文献
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一类具有非局部反应扩散方程的奇摄动问题 总被引:7,自引:0,他引:7
本文讨论一类具非局部反应扩散方程的奇摄动初始边值问题,利用迭代法及微分不等式,研究了初始边值问题的存在唯一及其渐近性态。 相似文献
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非线性非局部反应扩散方程奇摄动问题 总被引:1,自引:1,他引:1
研究了一类具有非线性非局部反应扩散方程奇摄动Robin初始边值问题。在适当的条件下,首先求出了原问题的外部解,然后利用伸长变量、合成展开法和幂级数展开理论构造出解的初始层项,并由此得到解的形式渐近展开式。最后利用微分不等式理论,讨论了问题解的渐近性态并导出了几个有关的不等式,讨论了原问题解的存在唯一性和解的一致有效的渐近估计式。 相似文献
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本文研究了一类具有非局部边界条件的奇摄动半线性椭圆型方程边值问题。在适当的条件下,利用比较定理讨论了问题解的渐近性态。 相似文献
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研究了具有边界摄动的非线性反应扩散方程奇摄动问题.在适当的条件下,利用微分不等式理论,讨论了问题解的渐近性态. 相似文献
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具有边界摄动弱非线性反应扩散方程的奇摄动 总被引:4,自引:1,他引:4
在适当的条件下研究了一类具有边界摄动的非线性反应扩散方程奇摄动初始边值问题.首先,借助正规摄动方法,得到了原问题的外部解.其次,利用伸长变量和幂级数展开理论,构造了解的初始层项.然后,利用微分不等式理论,研究了初始边值问题解的渐近性态.最后,利用一些相关的不等式,讨论了原问题解的存在、唯一性及其一致有效的渐近估计. 相似文献
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A Nonlinear Singularly Perturbed Problem for Reaction Diffusion Equations with Boundary Perturbation
Jia-qiMo Wan-taoLin 《应用数学学报(英文版)》2005,21(1):101-104
A nonlinear singularly perturbed problems for reaction diffusion equation with boundary perturbation is considered. Under suitable conditions, the asymptotic behavior of solution for the initial boundary value problems of reaction diffusion equations is studied using the theory of differential inequalities. 相似文献
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The Nonlinear Singularly Perturbed Initial Boundary Value Problems of Nonlocal Reaction Diffusion Systems 总被引:7,自引:0,他引:7
Jia-qi Mo Wan-tao Lin 《应用数学学报(英文版)》2006,22(2):277-286
In this paper the singularly perturbed initial boundary value problems for the nonlocal reactiondiffusion system are considered.Using the iteration method and the comparison theorem,the existence and itsasymptotic behavior of the solution for the problem are studied. 相似文献
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A class of nonlinear nonlocal singularly perturbed Robin initial boundary value problems for reaction diffusion equations with boundary perturbation is considered. Under suitable conditions, firstly, the outer solution of the original problem is obtained; secondly, by using the stretched variable, the composing expansion method and the expanding theory of power series, the initial layer is constructed; and finally, by using the theory of differential inequalities the asymptotic behavior of solutions for initial boundary value problems is studied, and including some relational inequalities the existence and uniqueness of solutions for the original problem and the uniformly valid asymptotic estimation are discussed. 相似文献
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The singularly perturbed nonlinear nonlocal initial boundary value problem for reaction diffusion equations is discussed. Under suitable conditions, the outer solution of the original problem is obtained. By using the stretched variable, the composing expansion method and the expanding theory of power series the initial layer is constructed. By using the theory of differential inequalities the asymptotic behavior of solution for the initial boundary value problems are studied, and by educing some relational inequalities the existence and uniqueness of solution for the original problem and the uniformly valid asymptotic estimation are considered. 相似文献
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研究了具有非局部边界的奇异摄动问题。对于正的小摄动参数,其解显示出边界层特性。为了求解该问题,构造了非等距网格上的指数型有限差分。还给出了小参数时的一致收敛性分析,同时给出了一个数值例子。 相似文献