摘要
过去,向量丛线性动力系统的整体线性性质研究已经显得相当广泛.现在,我们提议研究这种线性系统的扰动性质.我们要考虑的这种扰动系统将不再是线性的,但要研究的性质一般仍是整体性的.再者我们感兴趣的为非一致双曲性.在本文中我们给出了这种扰动的恰当的定义.它虽表现得有几分不太通常,然而它较深地植根于有关微分动力系统理论的典泛方程组中.这里一般的问题是要观察,当扰动发生后,原给系统的何种性质得以保持下来.本文的全部内容是要建立这种类型的一个定理.
The study of linear and global properties of linear dynamical systems on vector bundles appeared rather extensive already in the past.Presently we propose to study perturbations of this linear dynamics.The perturbed dynamical system which we shall consider is no longer linear while the properties to be studied will be still global in general.Moreover,we are interested in the nonuniformly hyperbolic properties.In this paper we set an appropriate definition for such perturbations.Though it appears somewhat not quite usual,yet has deeper root in standard systems of differential equations in the theory of differentiable dynamical systems.The general problem is to see which property of the original given dynamical system is persistent when a perturbation takes place, The whole content of the paper is devoted to establishing a theorem of this sort.
出处
《应用数学和力学》
CSCD
北大核心
1996年第9期759-771,共13页
Applied Mathematics and Mechanics
关键词
向量丛
动力系统
遍历性
可行许扰动
点式有界
vector bundle dynamics, nonuniform hyperbolicity,ergodicity, admissible perturation, pointwise boundendness