Applied Mathematics and Mechanics (English Edition) ›› 1984, Vol. 5 ›› Issue (3): 1309-1316.
章国华1, 刘光旭2
K.W.Chang1, G.X.Liu2
摘要: Some authors employed the method and technique of differential inequalities to obtain fairly general results concerning the existence and asymptotic behavior, as ε→n+, of the solutions of scalar boundary value problems εuu=h(t,y),a<t<b,y(a,ε)=A,y(b,ε)=B. In this paper, we extend these results to vector boundary value problems, under analogous stability conditions on the solution u=xu(t) of the reduced equation 0=h(t, u) Two types of asymptotic behavior are studied, depending on whether the reduced solution u(f) has or does not have a con tinuous first derivative in (a, b) leading to the phenomena of boundary and angular layers.