Cordaro, Giuseppe; Rao, Giuseppe Three periodic solutions for perturbed second order Hamiltonian systems. (English) Zbl 1185.34048 J. Math. Anal. Appl. 359, No. 2, 780-785 (2009). Reviewer: Chun-Lei Tang (Chongqing) MSC: 34C25 47J30 PDF BibTeX XML Cite \textit{G. Cordaro} and \textit{G. Rao}, J. Math. Anal. Appl. 359, No. 2, 780--785 (2009; Zbl 1185.34048) Full Text: DOI
Cordaro, Giuseppe; Rao, Giuseppe Three solutions for a perturbed Dirichlet problem. (English) Zbl 1141.35030 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 68, No. 12, 3879-3883 (2008). MSC: 35J65 35D05 35J20 PDF BibTeX XML Cite \textit{G. Cordaro} and \textit{G. Rao}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 68, No. 12, 3879--3883 (2008; Zbl 1141.35030) Full Text: DOI