In this paper, we consider the existence of periodic solutions for the following planar system:\[ J u'=\D H(u)+ G(u)+h(t)\,, \]
where the function is positive for and positively -quasi-homogeneous of quasi-degree is local Lipschitz and bounded, is -periodic and is the standard symplectic matrix.
Cite this article
Xiaojing Yang, Existence of Periodic Solutions of a Class of Planar Systems. Z. Anal. Anwend. 25 (2006), no. 2, pp. 237–248DOI 10.4171/ZAA/1286