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一类高阶微分方程组解的渐近行为(英文)
Asymptotic Behavior of the Solutions of a Class of High Order Differential Equations
【摘要】 对方程组Mx″+x′=f(t,x),x∈ΩRn,t∈R1,得到如下结果:若该方程组有一个解x1(t)满足limt→+∞x1(t,t0,x11,x12)=c,则存在方程组x′=f(t,x)的一解x2(t)=x2(t,t0,x20),使得limt→+∞‖x1(t,t0,x11,x12)-x2(t,t0,x20)‖=0.这一结果的某些推广和应用实例也在文中予以讨论.
【Abstract】 It is proved that for any solution x1(t) of the system Mx″+x′=f(t,x),in which(lim)t→+∞(x′)1(t)=c,there exists a solution x2(t) of the system x′=f(t,x) such that(lim)t→+∞‖x1(t;t0,x11,x12)-x2(t;t0,x2)‖=0.Furthermore,some generalizations of this result are also presented.Finally some examples are investigated explicitly.
【关键词】 微分方程组;
渐近行为;
拓扑原理;
【Key words】 differential equation; asymptotic behavior; topological principle;
【Key words】 differential equation; asymptotic behavior; topological principle;
【基金】 国家自然科学基金(10432010)资助~~
- 【文献出处】 内蒙古大学学报(自然科学版) ,Acta Scientiarum Naturalium Universitatis Neimongol , 编辑部邮箱 ,2005年06期
- 【分类号】O175.23
- 【下载频次】52