Abstract
We describe the results that have so far been obtained in the classification problem for integrable (2+1)-dimensional systems of hydrodynamic type. The Gibbons-Tsarev (GT) systems are most fundamental here. A whole class of integrable (2+1)-dimensional models is related to each such system. We present the known GT systems related to algebraic curves of genus g = 0 and g = 1 and also a new GT system corresponding to algebraic curves of genus g = 2. We construct a wide class of integrable models generated by the simplest GT system, which was not considered previously because it is “trivial.”
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This paper was written at the request of the Editorial Board.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 163, No. 2, pp. 179–221, May, 2010.
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Odesskii, A.V., Sokolov, V.V. Integrable (2+1)-dimensional systems of hydrodynamic type. Theor Math Phys 163, 549–586 (2010). https://doi.org/10.1007/s11232-010-0043-1
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DOI: https://doi.org/10.1007/s11232-010-0043-1