【摘要】 研究了一个由非线性微分方程组所描述的数学模型。通过利用Poincare Bendixsion环域原理、比较原理和奇点指数的有关结论 ,证明了这个数学模型是全局稳定的。改进并纠正了关于这个模型已有的结论更多还原

【Abstract】 In this paper, the mathematical model governed by nonlinear differential equations is investigated. By using the Poincare-Bendixsion theorem, comparing theorem on differential equations and some results on index of critical points, the global stability of a nonlinear differential equations model is proved. The existing conclusions on this model are improved.更多还原