Geodesic
A discrete analog of the Lyapunov function for hyperbolic systems
Contemporary Mathematics. Fundamental Directions, Contemporary problems in mathematics and physics, Tome 64 (2018) no. 4, pp. 591-602 
R. D. Aloev; M. U. Khudayberganov. A discrete analog of the Lyapunov function for hyperbolic systems. Contemporary Mathematics. Fundamental Directions, Contemporary problems in mathematics and physics, Tome 64 (2018) no. 4, pp. 591-602. http://geodesic.mathdoc.fr/item/CMFD_2018_64_4_a0/
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     title = {A discrete analog of the {Lyapunov} function for hyperbolic systems},
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

We study the difference splitting scheme for the numerical calculation of stable solutions of a two-dimensional linear hyperbolic system with dissipative boundary conditions in the case of constant coefficients with lower terms. A discrete analog of the Lyapunov function is constructed and an a priori estimate is obtained for it. The obtained a priori estimate allows us to assert the exponential stability of the numerical solution.

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