Geodesic
THE BOUSSINESQ INTEGRABLE SYSTEM: COMPATIBLE LATTICE AND CONTINUUM STRUCTURES
Glasgow mathematical journal, Tome 47 (2005) no. A, pp. 205-219

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DOI

We consider the discrete Boussinesq integrable system and the compatible set of differential difference, and partial differential equations. The latter not only encode the complete hierarchy of the Boussinesq equation, but also incorporate the hyperbolic Ernst equations for an Einstein-Maxwell-Weyl field in general relativity. We demonstrate a specific symmetry reduction of the partial differential equations, to a six-parameter, second order coupled system of ordinary differential equations, which is conjectured to be of Garnier type.
DOI : 10.1017/S0017089505002417
Mots-clés : 35Q58 
TONGAS, ANASTASIOS; NIJHOFF, FRANK. THE BOUSSINESQ INTEGRABLE SYSTEM: COMPATIBLE LATTICE AND CONTINUUM STRUCTURES. Glasgow mathematical journal, Tome 47 (2005) no. A, pp. 205-219. doi: 10.1017/S0017089505002417
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     title = {THE {BOUSSINESQ} {INTEGRABLE} {SYSTEM:} {COMPATIBLE} {LATTICE} {AND} {CONTINUUM} {STRUCTURES}},
     journal = {Glasgow mathematical journal},
     pages = {205--219},
     year = {2005},
     volume = {47},
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     doi = {10.1017/S0017089505002417},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089505002417/}
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