NECESSARY AND SUFFICIENT CONDITIONS FOR THE OSCILLATION OF A DELAY LOGISTIC EQUATION WITH CONTINUOUS AND PIECEWISE CONSTANT ARGUMENTS

• 作者: Wang Youbin Yan Jurang
• 来源期刊: 微分方程年刊：英文版
• 学科: 数学
• 关键词: LOGISTIC方程 分段常量幅度 振动特性 正解 时滞性
• 年，卷（期）: 2005,（3）
• 页码范围: 435-438
• 页数: 4页
• 分类号: O175

摘要

<正>In this paper, we obtain some necessary and sufficient conditions for the oscillation of all positive solutions of a delay Logistic equation with continuous and piecewise constant arguments about the positive equilibrium.