摘要
本文首先推广了文[1]的定理1,其次,用上下解方法给出了时滞微分方程解的存在性定理。
In this paper,we first give a generalization of Theoreml[l]. Secondly,we prove a cxis tence theorem by use of method of minimal and maximal solutions.
出处
《昌潍师专学报》
1999年第2期25-27,共3页
Journal of Changwei Teachers College
