The relative Gel'fand-Kalinin-Fuks cohomology groups of the formal   Hamiltonian vector fields on 6-dimensional plane
  Using Crystal basis theory, we study the relative Gel'fand-Kalinin-Fuks cohomology groups of the formal Hamiltonian vector fields on 6-dimensional plane with weight =2,4,6. 
Kentaro Mikami
math.SG