工程数学学报
工程數學學報
공정수학학보
CHINESE JOURNAL OF ENGINEERING MATHEMATICS
2015年
2期
291-297
,共7页
汪维刚%石兰芳%韩祥临%莫嘉琪
汪維剛%石蘭芳%韓祥臨%莫嘉琪
왕유강%석란방%한상림%막가기
非线性%反应扩散%奇摄动
非線性%反應擴散%奇攝動
비선성%반응확산%기섭동
nonlinear%reaction diffusion%singular perturbation
本文研究了具有边界摄动的非线性时滞反应扩散方程奇摄动问题。首先得到了退化问题的解。其次构造了原问题的外部解。然后引入伸长变量构造了解的初始层校正项,得到了解的形式渐近展开式。最后在适当的假设下,利用微分不等式理论,证明了原初始边植问题解的渐近展开式的一致有效性。
本文研究瞭具有邊界攝動的非線性時滯反應擴散方程奇攝動問題。首先得到瞭退化問題的解。其次構造瞭原問題的外部解。然後引入伸長變量構造瞭解的初始層校正項,得到瞭解的形式漸近展開式。最後在適噹的假設下,利用微分不等式理論,證明瞭原初始邊植問題解的漸近展開式的一緻有效性。
본문연구료구유변계섭동적비선성시체반응확산방정기섭동문제。수선득도료퇴화문제적해。기차구조료원문제적외부해。연후인입신장변량구조료해적초시층교정항,득도료해적형식점근전개식。최후재괄당적가설하,이용미분불등식이론,증명료원초시변식문제해적점근전개식적일치유효성。
The nonlinear singular perturbation problem for the reaction diffusion time delay equation with boundary perturbation is considered in this paper. Firstly, the redu-ced solution is obtained. Secondly, the outer solution of the original problem is constructed. Then, introducing a stretched variable, the initial layer correction of solution is obtained. Finally, under the suitable conditions, applying the theory of differential inequalities the uniformly valid asymptotic expansion of solution for the original initial boundary value problem is proved.