Guil Guerrero, Francisco JoséMañas Baena, Manuel EnriqueMartínez Alonso, Luis2023-06-202023-06-202003-06-130305-447010.1088/0305-4470/36/23/311https://hdl.handle.net/20.500.14352/51536©2003 IOP Publishing Ltd. This work is partially supported by the DGESIC Proyecto PB98-0821.The factorization problem for the group of canonical transformations close to the identity and the corresponding twistor equations for an ample family of canonical variables are considered. A method to deal with these reductions is developed for the construction of classes of nontrivial solutions of the dKP equation.engjournal articlehttp://dx.doi.org/10.1088/0305-4470/36/23/311http://iopscience.iop.orghttp://arxiv.org/abs/nlin/0211020open access51-73Dispersionless kp hierarchyIntegrable hierarchiesWhitham hierarchyBenney equationsReductionsModelsLimitFísica-Modelos matemáticosFísica matemática