数学季刊(英文版)
數學季刊(英文版)
수학계간(영문판)
CHINESE QUARTERLY JOURANL OF AMTHEMTICS
2003年
1期
49-56
,共8页
nonlinear differential system%Liénard-type system%solutions%boundendenss
In this paper, author obtain sufficient condition for the boundedness of solutions of the second order nonlinear differential system(dx)/(dt)=y-φ(x), (dy)/(dt)=-yf(x)-g(x).(E)The result can be applied to the Liénard-type system, which substantially extends and imporves some important results associated with the same problems in the literatures [1-10] et al..