The variety of pairs of commuting nilpotent matrices is irreducible V. Baranovsky OriginalPaper Pages: 3 - 8
Combinatorics of the\(\widehat{\mathfrak{s}\mathfrak{l}}_2 \) spaces of coinvariants B. FeiginS. LoktevE. Mukhin OriginalPaper Pages: 25 - 52