  The Weyl algebra (W_{2m}[h]; *) is the algebra generated by
u=(u_1,...,u_m,v_1,.....,v_m) over C with the fundamental commutation relation
[u_i,v_j]=-ih\delta_{ij}, where h is a positive constant. The Heisenberg
algebra (\Cal H_{2m}[nu];*) is the algebra given by regarding the scalar
parameter h in the Weyl algebra W_{2m}[h] to be a generator nu which commutes
with all others.
