关键词: 种群;非线性差分方程;稳定性

    摘 要:目的 寻求种群生长的数学模型. 方法 差分方程理论. 结果 建立了描述种群生长的非线性差分方程模型. 结论 该非线性差分方程模型具有良好的可靠性和稳定性.

    Nonlinear difference equation of population growing and analysis of stability

    ZHAO Dong-Tao LI Wen-Chao CHEN Chang-Sheng

    1 Department of Mathematics，Faculty of Biomedical Engineering，

    2 Department of Health Statistics，Fac-ulty of Preventive Medicine，Fourth Military Medi-cal University，Xi'an710033，China

    Keywords:population;nonlinear difference equation;stabili-ty

    Abstract:AIM To find a mathematical model of population growing.METHODS Theory of difference equation.RE┐SULTS Model of nonlinear difference equation that de-scribes the growth of population has been established.CON┐CLUSION Model of nonlinear difference equation has the advantage of reliability and stability.

     0 引言

    为了确定将来一个种群中动物的规模 ......