Egorov Hydrodynamic Chains, the Chazy Equation, and $SL(2,\mathbb{C})$

V. M. Buchstaber; D. V. Leikin; M. V. Pavlov

Geodesic

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Egorov Hydrodynamic Chains, the Chazy Equation, and $SL(2,\mathbb{C})$

V. M. Buchstaber ; D. V. Leikin ; M. V. Pavlov

Funkcionalʹnyj analiz i ego priloženiâ, Tome 37 (2003) no. 4, pp. 13-26

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Résumé

The general solution of the system of differential equations describing Egorov hydrodynamic chains is constructed. The solution is given in terms of the elliptic sigma function. Invariants of the sigma function are expressed as differential polynomials in a solution of the Chazy equation. The orbits of the induced action of $SL(2,\mathbb{C})$ and degenerating operators in the space of solutions are described.

Mots-clés : hydrodynamic chain
Keywords: Egorov type system, Chazy equation, elliptic function, $SL(2)$.

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     author = {V. M. Buchstaber and D. V. Leikin and M. V. Pavlov},
     title = {Egorov {Hydrodynamic} {Chains,} the {Chazy} {Equation,} and $SL(2,\mathbb{C})$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {13--26},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2003_37_4_a6/}
}

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V. M. Buchstaber; D. V. Leikin; M. V. Pavlov. Egorov Hydrodynamic Chains, the Chazy Equation, and $SL(2,\mathbb{C})$. Funkcionalʹnyj analiz i ego priloženiâ, Tome 37 (2003) no. 4, pp. 13-26. http://geodesic.mathdoc.fr/item/FAA_2003_37_4_a6/