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Systems of quasilinear conservation laws and algorithmization of variational principles

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Abstract

A previously formulated new approach to the consideration of systems of quasilinear hyperbolic equations on the basis of variational principles is described in more detail in the case of special systems of three equations. It is shown that each field of characteristics can be represented as a solution of a variational problem. Moreover, the Rankine–Hugoniot relations at the corner points of the characteristics or at the intersections of the characteristics of a single family hold automatically. In the simplest case of the Hopf equation, a numerical algorithm is constructed on the basis of a variational principle.

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Authors and Affiliations

  1. Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Miusskaya pl. 4, Moscow, 125047, Russia

    Yu. G. Rykov & O. B. Feodoritova

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  1. Yu. G. Rykov
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  2. O. B. Feodoritova
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Correspondence to Yu. G. Rykov.

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Original Russian Text © Yu.G. Rykov, O.B. Feodoritova, 2015, published in Zhurnal Vychislitel’noi Matematiki i Matematicheskoi Fiziki, 2015, Vol. 55, No. 9, pp. 1586–1598.

In blessed memory of A.P. Favorskii

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Rykov, Y.G., Feodoritova, O.B. Systems of quasilinear conservation laws and algorithmization of variational principles. Comput. Math. and Math. Phys. 55, 1554–1566 (2015). https://doi.org/10.1134/S0965542515090122

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  • DOI: https://doi.org/10.1134/S0965542515090122

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