Bratti, Giuliano A remark about elliptic overdeterminated systems. (English) Zbl 0411.35020 Rend. Sem. Mat. Univ. Padova 58, 191-194 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 35E20 General theory of PDEs and systems of PDEs with constant coefficients 35N05 Overdetermined systems of PDEs with constant coefficients Keywords:elliptic overdeterminated systems; elliptic and hypoelliptic polynomials; real characteristics; constant coefficients PDFBibTeX XMLCite \textit{G. Bratti}, Rend. Semin. Mat. Univ. Padova 58, 191--194 (1977; Zbl 0411.35020) Full Text: Numdam EuDML References: [1] A. Ayantaggiati , Sulle matrici fond. princ. per una classe di sistemi differenziali ellittici ed ipoellittici , Ann. di Mat. 1964 . Zbl 0123.07501 · Zbl 0123.07501 · doi:10.1007/BF02418226 [2] C. Lech , A metric propriety of the zeros of a complex polynomial ideal , Ark. Mat. 3 , No. 6 , 1958 . MR 104789 | Zbl 0095.25904 · Zbl 0095.25904 · doi:10.1007/BF02589516 [3] L. Hormander , Differentibility proprieties of solution of systems of differential equations , Ark. Mat. 3 , No. 50 , 1958 . MR 104923 | Zbl 0131.09503 · Zbl 0131.09503 · doi:10.1007/BF02589514 [4] V.P. Palomodov , Linear Differential Operators With Constant Coefficients , Springer-Verlag , 1970 . MR 264197 | Zbl 0191.43401 · Zbl 0191.43401 [5] I.G. Petrovski , Sur l’analycité des systems d’équations differentielles , Mat. Sb. 5 ( 47 ), No. I , 1939 . This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.