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Generalized Drinfel'd-Sokolov hierarchies

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Abstract

A general approach is adopted to the construction of integrable hierarchies of partial differential equations. A series of hierarchies associated to untwisted Kac-Moody algebras, and conjugacy classes of the Weyl group of the underlying finite Lie algebra, is obtained. The generalized KdV hierarchies of V.G. Drinfel'd and V.V. Sokolov are obtained as the special case for the Coxeter element. Various examples of the general formalism are treated in some detail; including the fractional KdV hierarchies.

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Authors and Affiliations

  1. Institute for Advanced Study, Olden Lane, 08540, Princeton, NJ, USA

    Mark F. de Groot

  2. Joseph Henry Laboratories, Department of Physics, Princeton University, 08544, Princeton, NJ, USA

    Timothy J. Hollowood & J. Luis Miramontes

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  1. Mark F. de Groot
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  2. Timothy J. Hollowood
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  3. J. Luis Miramontes
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Communicated by A. Jaffe

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de Groot, M.F., Hollowood, T.J. & Miramontes, J.L. Generalized Drinfel'd-Sokolov hierarchies. Commun.Math. Phys. 145, 57–84 (1992). https://doi.org/10.1007/BF02099281

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  • DOI: https://doi.org/10.1007/BF02099281

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