-stability of mKdV multi-kinks
We describe some recent results concerning the nonlinear -stability of multi-solitons of the Korteweg-de Vries equation [], and -stability of multi-kinks of the modified Korteweg-de Vries []. The proof of both results is closely linked to stability properties for solitons of the integrable Gardner equation, which have been considered by Martel, Merle and Tsai [, ].