Interaction of Noncommutative Plane Waves in 2+1 Dimensions
  In this paper the interaction of extended waves in a noncommutative modified 2+1 dimensional U(2) sigma model are studied. Using the dressing method, we construct an explicit two-wave solution of the noncommutative field equation. The scattering of these waves and large time factorization are discussed. 
Stig Bieling