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中文摘要：
研究含离散时滞造血模型的渐近性及周期解.利用函数的单调性、构造Lyapunov函数、分支理论及周期函数正交性等方法分别得到了该模型正平衡态的存在唯一性的充要条件、全局吸引性的充分条件、分支周期解的近似表达式.运用Matlab举出实例并绘出了血液模型数值解的拟合图象.
英文摘要：
The global asymptoticy of the positive equlibria and Hopf bifurcation periodic solution in a hematopoiesis model with decrete delays are studied. The necessary and sufficient conditions of the existence and uniquity of the positive equlibria by applying functional derivative is obtained, the global attractiveness of the positive equlibria is investigated by stucturing Lyapunov function and bifurcation values for the existence of bifurcation periodic solution are derived and the form of the approximate peridic solution is obtained by using the solvability condition. Some specific examples are given and the solution diagrame appears by Matlab.
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