Symplectic $W_8, W_9$ singularities
  We study the local symplectic algebra of curves. We use the method of algebraic restrictions to classify symplectic $W_8$ and $W_9$ singularities. We use discrete symplectic invariants to distinguish symplectic singularities of the curves. We also give the geometric description of symplectic classes. 
Zaneta Trebska
math.SG math.AG math.DG