2006/01/23 by A. Ya. Maltsev, Maltsev, A. Ya.
Physics and Astronomy · #Exactly Solvable and Integrable Systems (nlin.SI) #FOS: Physical sciences #nlin.SI
paper · pdf · doi:10.48550/arxiv.nlin/0601050
24 pages, Latex, 2 figures
arxiv created 2006/03/30 · arxiv updated 2009/12/01
We consider the Lagrangian formalism of the deformations of Whitham systems having Dubrovin-Zhang form. As an example the case of modulated one-phase solutions of the non-linear "V-Gordon" equation is considered.