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The geometry of a quasilinear system of two partial differential equations containing the first and second partial derivatives of two functions in two independent variables

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Abstract

The geometry of a system of two partial differential equations containing the first and second partial derivatives of two functions in two independent variables is studied by using the Cartan method of invariant forms and the group-theoretic method of extensions and enclosings due to G. F. Laptev (for finite groups) and A. M. Vasil’ev (for infinite groups). Systems of quasilinear equations with the first and second partial derivatives of two functions u and v in two independent variables x and y are classified.

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Authors and Affiliations

  1. Moscow State Construction University, Moscow, Russia

    L. N. Orlova

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  1. L. N. Orlova
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Correspondence to L. N. Orlova.

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Translated from Fundamentalnaya i Prikladnaya Matematika, Vol. 16, No. 2, pp. 67–84, 2010.

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Orlova, L.N. The geometry of a quasilinear system of two partial differential equations containing the first and second partial derivatives of two functions in two independent variables. J Math Sci 177, 692–704 (2011). https://doi.org/10.1007/s10958-011-0498-0

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