摘要
Four families of similarity reductions are obtained for the nonlinear evolution equation arising in the Fermi-Pasta-Ulam problem via using both the direct method due to Clarkson and Kruskal and the improved direct method due to Lou.
Four families of similarity reductions are obtained for the nonlinear evolution equation arising in the Fermi-Pasta-Ulam problem via using both the direct method due to Clarkson and Kruskal and the improved direct method due to Lou.
基金
theNationalKeyBasicResearchDevelopmentProjectProgramofChina(G1 9980 3 0 60 0 )
theNationalNaturalScienceFoundationofChina ( 1 0 0 72 0 1 3 )
DoctoralFoundationofChina ( 980 1 41 1 9)
