Singular Perturbation of Boundary Value Problem for a Vector Fourth Order Nonlinear Differential Equation

Lin Zong-chi; Lin Su-rong

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Lin Zong-chi, Lin Su-rong. Singular Perturbation of Boundary Value Problem for a Vector Fourth Order Nonlinear Differential Equation[J]. Applied Mathematics and Mechanics, 1988, 9(5): 385-395.

Citation:

Lin Zong-chi, Lin Su-rong. Singular Perturbation of Boundary Value Problem for a Vector Fourth Order Nonlinear Differential Equation[J]. Applied Mathematics and Mechanics, 1988, 9(5): 385-395.

Citation:

Lin Zong-chi, Lin Su-rong. Singular Perturbation of Boundary Value Problem for a Vector Fourth Order Nonlinear Differential Equation[J]. Applied Mathematics and Mechanics, 1988, 9(5): 385-395.

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Singular Perturbation of Boundary Value Problem for a Vector Fourth Order Nonlinear Differential Equation

Lin Zong-chi¹,
Lin Su-rong²

1.
Fujian Normal University, Fuzhou;
2.
Fujian Broadcasting TV University, Fuzhou

Received Date: 1987-02-20
Publish Date: 1988-05-15

Abstract

Abstract

We study the vector boundary value problem with boundary perturbations:
ε²y⁽⁴⁾=f(x,y,y″,ε,μ)(μy(x,ε,μ)|_x=μ=A₁(ε,μ),y(x,ε,μ)|_x=1-μ=B₁(ε,μ)
y″(x,ε,μ)|_x=μ=A₂(ε,μ),y″(x,ε,μ)|_x=1-μ=B₂(ε,μ)
where y f, A_j and B_j (j=1,2) are n-dimensional vector functions and ε, μ are two small positive parameters. This vector boundary value problem does not appear to have been studied, although the scalar boundary value problem has been treated. Under appropriate assumptions, using the method of differential inequalities we find a solution of the vector boundary value problem and obtain the uniformly valid asymptotic expansions.

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References(7)

References

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