POSITIVE PERIODIC SOLUTION TO SECOND-ORDER NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATION WITH MIXED DELAY

• 来源期刊: 微分方程年刊：英文版
• 学科: 数学
• 年，卷（期）: 2012,（2）
• 页码范围: 194-201
• 页数: 8页
• 分类号: O241

摘要

We discuss two types of second-order neutral functional differential equations with mixed delay in this paper. By applying Krasnoselskii's fixed-point theorem, some results about the existence of positive periodic solution to the systems are obtained, which complement the previous known results.