Gårding, Lars; Malgrange, Bernard Opérateurs différentiels partiellement hypoelliptiques et partiellement elliptiques. (French) Zbl 0108.10101 Math. Scand. 9, 5-21 (1961). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 25 Documents Keywords:partial differential equations PDFBibTeX XMLCite \textit{L. Gårding} and \textit{B. Malgrange}, Math. Scand. 9, 5--21 (1961; Zbl 0108.10101) Full Text: DOI EuDML