On Periodic Solution of Nonconservative Systems  

作　　者：李维国 陈昆亭 

机构地区：[1]Nanjing [2]University

出　　处：《Chinese Quarterly Journal of Mathematics》1997年第3期45-49, ,共5页数学季刊（英文版）

摘　　要：In this paper,we consider the following systems x″+ Bx′+ gradG(x,t) = 0.Weak sufficient condition for the existence of a unique 2π-periodic solution of the systems is given and the results in [1]~ [3],[7]~ [8]are consequences of Theorem 2 in this paper if‖B‖2<1.

关 键 词：nonconservative system periodic solution HOMEOMORPHISM 

分 类 号：O175.1[理学—数学] O316[理学—基础数学]