Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.
AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.
A treatment is described for getting some algebro-geometric solutions of the coupled modified Kadomtsev-Petviashvili (cmKP) equations and a hierarchy of 1 + 1 dimensional integrable nonlinear evolution equations (INLEEs) by using the Neumann type systems through three steps: (i) according to the nonlinearization of Lax pair, the cmKP equations and the 1 + 1 dimensional INLEEs are reduced to a family of compatible Neumann type systems on a symplectic submanifold, whose involutive solutions give rise to the finite parametric solutions of the INLEEs in both 2 + 1 and 1 + 1 dimensions; (ii) from the holomorphic differentials and the Abel map on a hyperelliptic curve of Riemman surface, the Abel-Jacobi variables are introduced to straighten out the Neumann type flows, the 1 + 1 and 2 + 1 dimensional flows giving the Abel-Jacobi solutions; (iii) based on the Riemann theorem and the trace formulas, the Jacobi inversion is applied to the straightened flows for getting some new algebro-geometric solutions of the cmKP equations and the 1 + 1 dimensional integrable hierarchy. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4736838]