摘要
本文在fy(0,y,)=0(对所有y,y'),即f在t=0具有转向点的主要假设下研究非线性奇摄动问题εy=f(t,y,y'),y(-1,ε)A,y(1,ε)=B,对充分小的ε>0,建立了在转向点t=0呈两类非单调内部层(尖层或非单调过渡层)性态的解的存在性准则.
Under the principal assumption that fy'(0,y,y')=0 for all y,y',i.e.,the f possesses a turning point at t=0,this paper studies the nonlinear singular perturbation problem εy″=f(t,y,y'),y(- 1,ε)=A,y(1,ε)=B,and establishes the existence criteria,for'>0 sufficiently small,of solutions which exhibit one of two types of nonmonotone interior layer behavior:spike layer behavior or nonmonotone transition layer behavior,at the turning point t=0.
出处
《高校应用数学学报(A辑)》
CSCD
北大核心
1994年第2期146-153,共8页
Applied Mathematics A Journal of Chinese Universities(Ser.A)
基金
国家自然科学基金
关键词
奇摄动
非线性
边值问题
转向点
Singular Perturbation
Nonlinear Boundary Value Problems
Turning Points
Spike Layer
Nonmonotone Transition Layer.