Chen, Chao-Nien; Tzeng, Shyuh-yaur Variational and penalization methods for studying connecting orbits of Hamiltonian systems. (English) Zbl 0951.37019 Electron. J. Differ. Equ. 2000, Paper No. 57, 21 p. (2000). MSC: 37J45 37J40 37D15 PDF BibTeX XML Cite \textit{C.-N. Chen} and \textit{S.-y. Tzeng}, Electron. J. Differ. Equ. 2000, Paper No. 57, 21 p. (2000; Zbl 0951.37019) Full Text: EMIS EuDML
Aomoto, K.; Kato, Y. Green functions and spectra on free products of cyclic groups. (English) Zbl 0639.60008 Ann. Inst. Fourier 38, No. 1, 59-85 (1988). MSC: 60B15 20E05 PDF BibTeX XML Cite \textit{K. Aomoto} and \textit{Y. Kato}, Ann. Inst. Fourier 38, No. 1, 59--85 (1988; Zbl 0639.60008) Full Text: DOI Numdam EuDML