Bergamasco, A. P.; Mendoza, G. A.; Zani, S. On global hypoellipticity. (English) Zbl 1387.58037 Commun. Partial Differ. Equations 37, No. 9, 1517-1527 (2012). MSC: 58J99 35H10 35B65 35F05 57R22 PDF BibTeX XML Cite \textit{A. P. Bergamasco} et al., Commun. Partial Differ. Equations 37, No. 9, 1517--1527 (2012; Zbl 1387.58037) Full Text: DOI
Bergamasco, Adalberto P.; Zani, Sérgio Luís Global analytic regularity for structures of co-rank one. (English) Zbl 1153.35006 Commun. Partial Differ. Equations 33, No. 5, 933-941 (2008). Reviewer: Marco Biroli (Milano) MSC: 35A21 35H10 35B65 PDF BibTeX XML Cite \textit{A. P. Bergamasco} and \textit{S. L. Zani}, Commun. Partial Differ. Equations 33, No. 5, 933--941 (2008; Zbl 1153.35006) Full Text: DOI
Bergamasco, Adalberto P.; Cordaro, Paulo D.; Petronilho, Gerson Global solvability for a class of complex vector fields on the two-torus. (English) Zbl 1065.35088 Commun. Partial Differ. Equations 29, No. 5-6, 785-819 (2004). MSC: 35F05 35A05 PDF BibTeX XML Cite \textit{A. P. Bergamasco} et al., Commun. Partial Differ. Equations 29, No. 5--6, 785--819 (2004; Zbl 1065.35088) Full Text: DOI