一类非线性扩散系统非平凡非负周期解的存在性

• 作 者: 孙杰宝 金春花 柯媛元
• 机 构: Department of Mathematics
• 出 处: 东北数学（英文版）
• 发表日期: 2004年期
• 关键词: periodic solution nonlinear diffusion system upper and lower solution

In this paper, by the method of upper and lower solutions, we establish the existence of the non-trivial nonnegative periodic solutions for a class of degenerate diffusion system arising from dynamics of biological groups.