摘要
利用Mawhin延拓定理证明了一类具有强迫项的有限时滞Lienard方程x″(t)+f_1(x)x′(t)+f_2(x)(x′(t))~2+g(x(t-τ))=e(t)存在周期解的充分条件.
In this paper,we use the Mawhin's continuity theorem to establish and prove new results on the sufficient conditions of the periodic solution of existence for a class forced and finite delayed Lienard equations of the form x"(t) + f_1(x)x'(t) + f_2(x)(x'(t))~2+ g(x(t-τ)) = e(t)
引文
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