Erratum to "On the existence of periodic solutions for a class of generalized forced Liénard equations" [Appl. Math. Lett 20 (3) (2007) 248-254]
نویسندگان
چکیده
Main Theorem. Suppose f, k, and g are real functions on R which are locally Lipschitz and p is a nonconstant, continuous, real function on [0, T ], T > 0. Also suppose all solutions of the initial value problem (1.1) can be extended to [0, T ]. If there exist real numbers a1 and a2 for which g(a1) ≤ p(t) ≤ g(a2) holds for each 0 ≤ t ≤ T , then there exists T0, 0 < T0 < T , such that if p is T0-periodic, Eq. (1.1) has at least one T0-periodic solution.
منابع مشابه
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ورودعنوان ژورنال:
- Appl. Math. Lett.
دوره 21 شماره
صفحات -
تاریخ انتشار 2008