Llibre, JaumeRoberto, Luci Any [UNESP]2014-05-272014-05-272013-01-01Discrete and Continuous Dynamical Systems- Series A, v. 33, n. 1, p. 277-282, 2013.1078-09471553-5231http://hdl.handle.net/11449/74291In this work we study the periodic solutions, their stability and bifurcation for the class of Duffing differential equation mathematical equation represented where C > 0, ε > 0 and Λ are real parameter, A(t), b(t) and h(t) are continuous T periodic functions and ε is sufficiently small. Our results are proved using the averaging method of first order.277-282engAveraging methodBifurcationDuffing differential equationPeriodic solutionStabilityArtigo10.3934/dcds.2013.33.277WOS:000309286500019Acesso restrito2-s2.0-84867031466