Notes for AKT-091008-1/0:23:59

Statement:

" $W_{sl_{2}}(D)=0\ \Rightarrow \ W_{sl_{N}}^{top}(D)=0$ "

where $W_{sl_{N}}^{top}(D)={\mbox{Coeff}}_{N^{\deg {D}+2}}(W_{sl_{N}}(D))$.