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VOLUME 61 (1995) | ISSUE 2 |
PAGE 142
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On deformations of some integrable equations
Ivanova Т.A., Popov A.D.
We show that deformations of integrable equations in 1 < d < 3 or, in other words, nonautonomous versions of well-known integrable equations can be obtained by reduction of the self-duality equations of the Yang-Mills model in d 4 under the action of symmetry groups. We describe new nonautonomous integrable equations (and their linear systems), which are the deformations of the equation of the principal chiral model in d *■ 3, the Korteweg-de Vries equation and the equations of the Hamilton!an systems with quartic potentials.
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