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Chapter
On a Laplace Sequence of Nonlinear Integrable Ernst-Type Equations
Invariance under Laplace-Darboux-type transformations is established for the 2+1-dimensional Loewner-Konopelchenko-Rogers integrable system. This is exploited to derive a chain of novel, integrable Ernst-type ...
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Chapter
Ermakov Structure in 2 + 1-Dimensional Systems. Canonical Reduction
Ermakov-type systems in 2 + 1-dimensions are introduced. Multi-wave solutions of a 2 + 1-dimensional Pinney equation and a modulated 2 + 1-dimensional sine-Gordon equation are constructed via the standard Erma...