系统科学与数学
繫統科學與數學
계통과학여수학
JOURNAL OF SYSTEMS SCIENCE AND MATHEMATICAL SCIENCES
2001年
1期
101-106
,共6页
Li'enard方程%极限环%唯一性
Li'enard方程%極限環%唯一性
Li'enard방정%겁한배%유일성
本文推广了Li'enard方程的类型,并用其研究了一个二次微分系统(x)/(t)=-y+ x+lx2 + b xy +ny2, (y)/(t)=x (1+ax +by),b =0极限环的唯一性问题.
本文推廣瞭Li'enard方程的類型,併用其研究瞭一箇二次微分繫統(x)/(t)=-y+ x+lx2 + b xy +ny2, (y)/(t)=x (1+ax +by),b =0極限環的唯一性問題.
본문추엄료Li'enard방정적류형,병용기연구료일개이차미분계통(x)/(t)=-y+ x+lx2 + b xy +ny2, (y)/(t)=x (1+ax +by),b =0겁한배적유일성문제.
In this paper, Li'enard equation has been extended, and used it to research theuniqueness of limit cycles of a quadratic differential systems(x)/(t)=-y+ x+lx2+b xy + ny2, (y)/(t)=x(1+ax+by), b =0.
