摘要
研究了一类具有B-D反应函数的交错扩散捕食模型,利用常微分方程稳定性理论和积分不等式及拓扑度理论证明了交错扩散引起的正平衡点Turing失稳和交错扩散充分大时系统存在非常数正平衡解.
A class of cross-diffusion prey-predator model with B-D reaction function is studied. By using the stability theory of ordinary differential equation and Topological method,it is proved that cross-diffusion coefficient leads to Turing instability and the cross-diffusion is sufficiently large,there is a positive non-constant equilibrium solution.
作者
柳文清
陈清婉
LIU Wengqing;CHEN Qingwan(College of General Education of Minnan Science and Technology Institute,Quanzhou 362300,China)
出处
《北华大学学报(自然科学版)》
CAS
2020年第2期141-146,共6页
Journal of Beihua University(Natural Science)
基金
泉州科技高层次人才创新创业项目(2018C094R)
福建省中青年教师教育科研项目(JAT191035,JAT191044).
关键词
B-D反应函数
交错扩散
Turing不稳定
非常数正平衡解
B-D reaction function
cross-diffusion
Turing instability
extraordinary positive equilibrium solution