期刊名称：International Journal of Mathematics and Mathematical Sciences
印刷版ISSN：0161-1712
电子版ISSN：1687-0425
出版年度：1995
卷号：18
DOI：10.1155/S0161171295000883
出版社：Hindawi Publishing Corporation
摘要：In this paper, we study initial value problems for coupld second order delay differential
equations with variable coefficients. By means of the application of the method of steps and
the method of Frobenius, the exact solution of the problem is constrcted. Then, in a bounded
domain, a finite analytic solution with error bounds is provided. Given an admissible error ϵ we
give the number of terms to be taken in the infinite series exact solution so that the approximation
error be smaller than in the bounded domain.
