Liu, Chungen On the Lagrangian boundary problem of Hamiltonian systems and Seifert conjecture. (English) Zbl 1340.58007 Adv. Math., Beijing 44, No. 2, 161-169 (2015). MSC: 58E05 Abstract critical point theory (Morse theory, Lyusternik-Shnirel’man theory, etc.) in infinite-dimensional spaces 70H05 Hamilton’s equations 34C25 Periodic solutions to ordinary differential equations Keywords:Hamiltonian system; Lagrangian boundary problem; Seifert conjecture; convex symmetric domain PDFBibTeX XMLCite \textit{C. Liu}, Adv. Math., Beijing 44, No. 2, 161--169 (2015; Zbl 1340.58007) Full Text: DOI