Geodesic
Group properties of 2-submodels for the stationary class of gas-dynamic equations
Sibirskij žurnal čistoj i prikladnoj matematiki, Tome 7 (2007) no. 1, pp. 72-84 
E. V. Mamontov. Group properties of 2-submodels for the stationary class of gas-dynamic equations. Sibirskij žurnal čistoj i prikladnoj matematiki, Tome 7 (2007) no. 1, pp. 72-84. http://geodesic.mathdoc.fr/item/VNGU_2007_7_1_a5/
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Voir la notice de l'article provenant de la source Math-Net.Ru

Invariant 2-submodels (submodels with two independent variables) of the stationary class are considered for the equations of gas dynamics with an equation of state of general form. Group analysis of these submodels is performed. Allowable operators and transformations of equivalence are indicated, and group classification is performed.

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