Applied Mathematics and Mechanics (English Edition) ›› 2000, Vol. 21 ›› Issue (11): 1282-1291.
马世旺1,2, 王志成2, 庾建设2
收稿日期:
1998-03-25
修回日期:
2000-04-12
出版日期:
2000-11-18
发布日期:
2000-11-18
基金资助:
MA Shi-wang1,2, WANG Zhi-cheng2, YU Jian-she2
Received:
1998-03-25
Revised:
2000-04-12
Online:
2000-11-18
Published:
2000-11-18
Supported by:
摘要: The nonlinear system of first-order differential equations with a deviating argument
x(t)=Bx(t)+F(x(t-τ))+p(t)
is considered,where x(t)∈R2,τ∈R,B∈R2×2,F is bounded and p(t)is continuous
and 2π-periodic.Some sufficient conditions for the existence of 2π-periodic solutions of the above equation,in a resonance case,by using the Brouwer degree theory and a continuation theorem based on Mawhin's co incidence degree are obtained.Some applications of the main results to Duffing's equations are also given.
中图分类号:
马世旺;王志成;庾建设. THE EXISTENCE OF PERIODIC SOLUTIONS FOR NONLINEAR SYSTEMS OF FIRST-ORDER DIFFERENTIAL EQUATIONS AT RESONANCE[J]. Applied Mathematics and Mechanics (English Edition), 2000, 21(11): 1282-1291.
MA Shi-wang;WANG Zhi-cheng;YU Jian-she. THE EXISTENCE OF PERIODIC SOLUTIONS FOR NONLINEAR SYSTEMS OF FIRST-ORDER DIFFERENTIAL EQUATIONS AT RESONANCE[J]. Applied Mathematics and Mechanics (English Edition), 2000, 21(11): 1282-1291.
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