The quantum SKdV$_{1,4}$ equation at $c=3$
  At $c=3$, two of the three integrable quantum $N=2$ supersymmetric Korteweg-de Vries equations become identical (SKdV$_1$ and SKdV$_4$). Quite remarkably, all their conservation laws can be written in closed form, which provides thus a simple constructive integrability proof. 
P.Mathieu (Universit\'e Laval)