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一类四阶有理型差分方程的全局稳定性和环长规律
Rules of Cycle Length and Global Behavior of Fourth-Order Rational Difference Equation
【摘要】 考虑一类四阶有理型差分方程,清楚地描述了其解的环长规律,即一个周期的环长规律为:3+,4-,1+,1-,1+,2-,2+,1-;并得到方程的正平衡点是全局渐近稳定的.
【Abstract】 In this paper a fourth-order rational difference equation is considered.The rule of the cycle length for the solutions of the equation is clearly described.Namely,the rule is 3~+,4~-,1~+,1~-,1~+,2~-,2~+,1~-in a period.And,the global asymptotical stability of positive equilibrium point of the equation is obtained.
【关键词】 有理差分方程;
半环;
环长;
全局渐近稳定;
【Key words】 rational difference equation; semicycle; cycle length; global asymptotic stability;
【Key words】 rational difference equation; semicycle; cycle length; global asymptotic stability;
【基金】 湖南省教育厅优秀青年资助项目(04B056);南华大学重点资助项目(06Z02)
- 【文献出处】 南华大学学报(自然科学版) ,Journal of Nanhua University(Science and Technology) , 编辑部邮箱 ,2006年04期
- 【分类号】O175.7
- 【被引频次】1
- 【下载频次】89