云南师范大学学报(自然科学版)
雲南師範大學學報(自然科學版)
운남사범대학학보(자연과학판)
JOURNAL OF YUNAN NORMAL UNIVERSITY(NATURAL SCIENCES EDITION)
2005年
4期
3-8
,共6页
周期解%临界点%非自治二阶系统%Sobolev 不等式%极小化
週期解%臨界點%非自治二階繫統%Sobolev 不等式%極小化
주기해%림계점%비자치이계계통%Sobolev 불등식%겁소화
periodic solution%critical point%non-autonomous second order systems%Sobolev's inequality%minimize
这篇文章的目的是研究非自治二阶系统(u..)(t)=(△)F(t,u(t)), a.e.t∈[0,T]u(0)-u(T)=(u.)(0)-(u.)(T)=0周期解的存在性,通过最小作用原理获得一些存在性定理.
這篇文章的目的是研究非自治二階繫統(u..)(t)=(△)F(t,u(t)), a.e.t∈[0,T]u(0)-u(T)=(u.)(0)-(u.)(T)=0週期解的存在性,通過最小作用原理穫得一些存在性定理.
저편문장적목적시연구비자치이계계통(u..)(t)=(△)F(t,u(t)), a.e.t∈[0,T]u(0)-u(T)=(u.)(0)-(u.)(T)=0주기해적존재성,통과최소작용원리획득일사존재성정리.
The purpose of this paper is to study the existence of periodic solutions of Non-autonomous second order systems (u..)(t)=(△)F(t,u(t)), a.e.t∈[0,T]u(0)-u(T)=(u.)(0)-(u.)(T)=0 Some new existence theorems are obtained by using the least action principle.