Bergamasco, Adalberto P.; Kirilov, Alexandre; Nunes, Wagner Vieira Leite; Zani, Sérgio Luís On the global solvability for overdetermined systems. (English) Zbl 1275.35004 Trans. Am. Math. Soc. 364, No. 9, 4533-4549 (2012). MSC: 35A01 35N10 58J10 35B10 35F05 PDF BibTeX XML Cite \textit{A. P. Bergamasco} et al., Trans. Am. Math. Soc. 364, No. 9, 4533--4549 (2012; Zbl 1275.35004) Full Text: DOI
Bergamasco, Adalberto P.; Nunes, Wagner V. L.; Zani, Sérgio Luís Global properties of a class of overdetermined systems. (English) Zbl 1034.32024 J. Funct. Anal. 200, No. 1, 31-64 (2003). Reviewer: Aleksandr G. Aleksandrov (Moskva) MSC: 32W50 35N10 35H10 PDF BibTeX XML Cite \textit{A. P. Bergamasco} et al., J. Funct. Anal. 200, No. 1, 31--64 (2003; Zbl 1034.32024) Full Text: DOI
Vrbik, Jan Perturbed Kepler problem in quaternionic form. (English) Zbl 0876.70008 J. Phys. A, Math. Gen. 28, No. 21, 6245-6252 (1995). MSC: 70F05 70F15 11R52 PDF BibTeX XML Cite \textit{J. Vrbik}, J. Phys. A, Math. Gen. 28, No. 21, 6245--6252 (1995; Zbl 0876.70008) Full Text: DOI