摘要
§1.引言考察非线性算子方程: g(x,λ)=0,g:X×R→Y, (1.1)其中X,Y是Banach空间,gC3,λ是参数。我们要处理的是(1.1)的奇异点的情形,故设g(x0,λ0)=0,gx0奇异,且称(x0,λ0)是(1.1)的简单奇异点。如果(1.2),(1.3)成立。由于gx0是指标为0的Fredholm算子。
In this paper, two extended systems are provided and use them to deal with nonsimple turn-ing points. All kinds of nonsimple quadratic turning points for two parameter problems can be resolved. Nice results are obtained for two numerical examples.
出处
《计算数学》
CSCD
北大核心
1990年第4期337-343,共7页
Mathematica Numerica Sinica