共查询到16条相似文献,搜索用时 83 毫秒
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莫嘉琪 《数学物理学报(A辑)》2003,23(3):374-378
研究了具有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,讨论了当退化问题具有两个相交解时,原初始边值问题解的渐近性态。
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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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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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奇摄动时滞反应扩散方程 总被引:1,自引:0,他引:1
研究了一类带有小延迟的微分-差分反应扩散方程初值边值问题.在适当的条件下,利用伸长变量法,构造了问题的形式渐近解.再用微分不等式理论证明了解的一致有效性. 相似文献
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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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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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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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A Class of Nonlinear Singularly Perturbed Problems for Reaction Diffusion Equations with Boundary Perturbation 总被引:5,自引:0,他引:5
Jia-qi Mo Wan-tao Lin 《应用数学学报(英文版)》2006,22(1):27-32
A class of nonlinear singularly perturbed problems for reaction diffusion equations with boundary perturbation are considered. Under suitable conditions, the asymptotic behavior of solution for the initial boundary value problems is studied using the theory of differential inequalities. 相似文献
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讨论了一类具有超抛物型方程的反应扩散问题.首先,证明了比较定理.其次,构造了形式渐近解.然后,利用微分不等式方法,研究了问题解的存在、唯一性和渐近性态.最后得到了原问题解的渐近展开式. 相似文献