Asymptotics of a Second-Order Differential Equation with a Small Parameter in the Case when the Reduced Equation Has Two Solutions

被引:2
作者
Dolbeeva, S. F. [1 ]
Chizh, E. A. [1 ]
机构
[1] Chelyabinsk State Univ, Chelyabinsk 454021, Russia
基金
俄罗斯基础研究基金会;
关键词
asymptotic expansion of a solution; differential equation with a small parameter; boundary value problem; matching of asymptotic expansions;
D O I
10.1134/S096554250801003X
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The boundary value problem for a second-order nonlinear ordinary differential equation with a small parameter multiplying the highest derivative is examined. It is assumed that the reduced equation has two solutions with intersecting graphs. Near the intersection point, the asymptotic behavior of the solution to the original problem is fairly complex. A uniform asymptotic approximation to the solution that is accurate up to any prescribed power of the small parameter is constructed and justified.
引用
收藏
页码:30 / 42
页数:13
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