Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleInfinitely Many Periodic Solutions of Duffing Equations with Singularities via Time Map.AuthorsTiantian Ma; Zaihong WangAbstractWe study the periodic solutions of Duffing equations with singularities x" + g(x) = p(t). By using Poincaré-Birkhoff twist theorem, we prove that the given equation possesses infinitely many positive periodic solutions provided that g satisfies the singular condition and the time map related to autonomous system x" + g(x) = 0 tends to zero.SubjectsINFINITY (Mathematics); DUFFING equations; OSCILLATIONS; OSCILLATION theory of difference equations; MATHEMATICAL modelsPublicationAbstract & Applied Analysis, 2014, p1ISSN1085-3375Publication typeArticleDOI10.1155/2014/398512