2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/139127We extend the state models for Jones and Alexander polynomials of classical links to state models of 2-variable polynomials in the case of singular links. Moreover, we extend both of them to polynomials with d+1 variables for long singular knots with exactly d double points. These extensions can detect non-invertibility of long singular knots.10 pages, 11 figures v.2 : References added v.3 : Results improvedGeometric Topology57M25text