Almkvist's strong Lefschetz conjecture for relative coinvariant rings
Fix positive integers m,nm,nm,n, let W=G(m,1,n)W=G(m,1,n)W=G(m,1,n) and K=Sn⊂WK=\mathfrak{S}_n\subset WK=Sn⊂W, and define … Here eie_iei is the iii-th elementary symmetric function in x1,…,xnx_1,\ldots,x_nx1,…,xn, and…