Vinogradov, A. M.; Marvan, Michal; Yumaguzhin, V. A. Differential invariants of generic hyperbolic Monge-Ampère equations. (English. Russian original) Zbl 1133.35407 Dokl. Math. 72, No. 3, 883-885 (2005); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 405, No. 3, 299-301 (2005). MSC: 35L70 35A30 PDF BibTeX XML Cite \textit{A. M. Vinogradov} et al., Dokl. Math. 72, No. 3, 883--885 (2005; Zbl 1133.35407); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 405, No. 3, 299--301 (2005) Full Text: arXiv OpenURL
Verbovetskij, A. M.; Vinogradov, A. M.; Gessler, D. M. Scalar differential invariants and characteristic classes of homogeneous geometrical structures. (English. Russian original) Zbl 0814.57019 Math. Notes 51, No. 6, 543-549 (1992); translation from Mat. Zametki 51, No. 6, 15-26 (1992). Reviewer: V.L.Popov (Moskva) MSC: 57R15 57R20 55R40 PDF BibTeX XML Cite \textit{A. M. Verbovetskij} et al., Math. Notes 51, No. 6, 1 (1992; Zbl 0814.57019); translation from Mat. Zametki 51, No. 6, 15--26 (1992) OpenURL