摘要
讨论了一类具有时滞和阶段结构的强身型食饵-捕食者模型.通过分析特征方程,得到了正平衡点局部稳定的条件和Hopf分支存在的条件,利用中心流形定理和规范型理论给出了确定Hopf分支方向和分支周期解稳定性的计算公式.
A strengthen type predator-prey model with stage structure for predator and time delay is investigated. The local stability of the positive equilibria and the existence of Hopf bifurcation is obtained by analyzing the characteristic equation. Using the normal form theory and the center manifold theorem, the formula are obtained to determine the stability and directions of Hopf bifurcations.
出处
《北华大学学报(自然科学版)》
CAS
2013年第6期631-637,共7页
Journal of Beihua University(Natural Science)
基金
国家自然科学基金项目(11071254)
河北省自然科学基金项目(A2013506012)