In this paper , some sufficient conditions of global asymptotical stability of the zero solution are given.

它同时也给出了一些具有一般意义的三阶非线性系统推广而成的时滞系统零解全局渐近稳定的结果.

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If R 01 , a unique endemic equilibrium is locally asymptotical stable under a special condition.

当R01时, 存在唯一正平衡解,且在一定条件下局部稳定.最后对该文做了一些讨论.

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