Hermann, Robert The geometry of non-linear differential equations, Bäcklund transformations, and solutions. Part A. (English) Zbl 0367.35001 Interdisciplinary Mathematics. Vol. XII. Brookline, Massachusetts: Math. Sci. Press. XII, 313 p. (1976). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 7 Documents MSC: 35-02 Research exposition (monographs, survey articles) pertaining to partial differential equations 35A30 Geometric theory, characteristics, transformations in context of PDEs 35A22 Transform methods (e.g., integral transforms) applied to PDEs 35G20 Nonlinear higher-order PDEs 58A15 Exterior differential systems (Cartan theory) PDF BibTeX XML