Soliton solutions of the Hamiltonian DSI and DSIII equations
  By introducing generalized Backlund Transformations depending on arbitrary functions, wave and localized soliton solutions of the Davey- Stewartson equations are generated. Moreover explicit soliton solutions of the Hamiltonian DSI and DSIII equations are obtained. 
Flora Pempinelli (Dipartimento di Fisica dell'Universita` e Sezione   INFN - 73100 LECCE - Italy)