Exact solutions of the focussing Davey-Stewartson II equation are presented
, which describe the interaction of N-lumps with a line soliton. These solu
tions are constructed by analysing the inverse spectral problem of the asso
ciated Lax pair. The dynamical properties of these solutions are also discu
ssed. (C) 2001 Elsevier Science B.V. All rights reserved.