2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53467We prove that the dimensions of coinvariants of certain nilpotent subalgebras of the Virasoro algebra do not change under deformation in the case of irreducible representations of (2,2r+1) minimal models. We derive a combinatorial description of these representations and the Gordon identities from this result.9 pages, amslatex; for non-amslatex users the .dvi file is available via anonymous ftp from math.harvard.edu/pub:coinv.dviHigh Energy Physics - Theorytext