Positivity Properties and Stability of Solitary–Wave Solutions of Model Equations For Long Waves

John P. Albert
1992 Communications in Partial Differential Equations  
Sufficient conditions are given for stability of solitary-wave solutions of model equations for one-dimensional long nonlinear waves. These conditions differ from others which have appeared previously in that they are phrased in terms of positivity properties of the Fourier transforms of the solitary waves. Their use leads to simplified proofs of existing stability results for the Korteweg-de Vries, Benjamin-Ono, and Intermediate Long Wave equations; and to new stability results for certain
more » ... lts for certain solitary-wave solutions of partial differential equations of Korteweg-de Vries type. Typeset by A M S-T E X
doi:10.1080/03605309208820831 fatcat:lyqb5ixntrfmxgwkp5lhoqlc7m