Cordaro, Paulo D.; Hanges, Nicholas Hypoellipticity in spaces of ultradistributions – study of a model case. (English) Zbl 1286.35079 Isr. J. Math. 191, Part B, 771-789 (2012). Reviewer: Petar Popivanov (Sofia) MSC: 35H10 35A27 46F05 PDFBibTeX XMLCite \textit{P. D. Cordaro} and \textit{N. Hanges}, Isr. J. Math. 191, Part B, 771--789 (2012; Zbl 1286.35079) Full Text: DOI
Petronilho, Gerson Simultaneous reduction of a family of commuting real vector fields and global hypoellipticity. (English) Zbl 1137.35016 Isr. J. Math. 155, 81-92 (2006). MSC: 35H10 35H20 37C10 PDFBibTeX XMLCite \textit{G. Petronilho}, Isr. J. Math. 155, 81--92 (2006; Zbl 1137.35016) Full Text: DOI