摘要
研究一类拟线性方程无穷大解值的初值问题,先通过一个简单的变换,将其转化为吉洪诺夫方程组,然后利用边界层函数法,在一定条件下,构造其形式渐近解,证明了解的存在唯一性,并给出了该形式渐近解在整个区间上一致有效的n+1阶渐近估计.
A class of infinitely-large initial value problem was considered for the quasi-linear singular perturbed equation.Via a simple transformation,this equation was transformed into Tihonov system.Under suitable conditions,we constructed its formula solution using the method of boundary functions.At the same time,the (n + 1) th order asymptotic solution of the problem was given in the whole interval.
出处
《吉林大学学报(理学版)》
CAS
CSCD
北大核心
2010年第1期52-56,共5页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:10671070)
上海浦江人才计划项目基金(批准号:05PJ14040)
上海市教委E-研究院建设计划项目基金(批准号:E03004)
地理信息科学教育部重点实验室开放研究项目基金
关键词
无穷大解
奇摄动
拟线性
infinitely-large solution
singular perturbation
quasi-linear