摘要
讨论非线性特征值问题正解的全局分歧,即关于方程u=F(λ,u)的分歧,其中u限制在锥上,F(λ,.)按由锥诱导的序为正;给出了分歧存在的必要和充分条件及分歧解枝的全局结构,并将所得到的结论应用到一个半线性椭圆型方程组中去.
In this paper,the bifurcation of nonlinear eigenvalue problems in cones,i. e.the bifurcation of the equations in the form of u=F (λ,u) is investigated,where u is confined in a cone and F(λ,.) is positive according to the order induced by the cone.The necessary conditions for the bifurcation and some global structures of the bifurcation branches are obtained.Applications are given to a system of semilinear elliptic equations which represents many kinds of ecological models.
出处
《高校应用数学学报(A辑)》
CSCD
北大核心
2000年第2期181-186,共6页
Applied Mathematics A Journal of Chinese Universities(Ser.A)
基金
国家自然科学基金!资助项目 (1 9671 0 67)
国家基础研究攀登项目