Absence of sufficiently localized traveling wave solutions for the   Novikov-Veselov equation at zero energy
  We demonstrate that the Novikov.Veselov equation (a (2+1)-dimensional analog of KdV) at zero energy does not possess solitons with the space localization stronger than O(|x|^{-4}). 
Anna Kazeykina (CMAP)
math.AP math-ph math.MP