Gårding, Lars Rectification à la note “Le problème de la dérivée oblique pour l’équation des ondes”. (French) Zbl 0395.35048 C. R. Acad. Sci., Paris, Sér. A 286, 1199 (1978). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 35L05 Wave equation 35A30 Geometric theory, characteristics, transformations in context of PDEs 35R30 Inverse problems for PDEs Keywords:Constant Coefficients Equations PDF BibTeX XML Cite \textit{L. Gårding}, C. R. Acad. Sci., Paris, Sér. A 286, 1199 (1978; Zbl 0395.35048)