On Periodic Solutions of Van Der Pol's Equation with Sinusoidal Forcing Term and Large Parameter
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چکیده
pit) of period In, which were discussed by Levinson [3] who established the existence of periodic solutions under conditions on/, g, p which hold for equation (1). The special equation (1) was studied in detail by Cartwright and Littlewood [1, 5, 6]; ([1] is an announcement of results, [5, 6] were written by Littlewood alone but describe the joint work announced in [1]). Established facts for (1) include the following.
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تاریخ انتشار 2006