Martínez Alonso, Luis2023-06-212023-06-2119850031-900710.1103/PhysRevLett.54.499https://hdl.handle.net/20.500.14352/65009©1985 The American Physical Society. The author wishes to thank G. Garcia Alcaine for helpful conversations. Partial financial support by Comision Asesora de Investigacion Cientifica y Tecnica is gratefully acknowledged.A method is given for finding the shifts in position of the solitons for the case of nonzero reflection coefficient. Expressions for boost generators in terms of scattering data play a prominent role in the analysis. Phase-shift formulas which show the effect of the radiation component on the soliton motion are deduced for the nonlinear Schrodinger equation, the Korteweg —de Vries equation, and the sine-Gordon equation.engjournal articlehttp://dx.doi.org/10.1103/PhysRevLett.54.499http://journals.aps.orgopen access51-73PhysicsmultidisciplinaryFísica-Modelos matemáticosFísica matemática