L. Ernstrom et G. Kennedy, RECURSIVE FORMULAS FOR THE CHARACTERISTIC-NUMBERS OF RATIONAL PLANE-CURVES, Journal of algebraic geometry, 7(1), 1998, pp. 141-181
We derive recursive equations for the characteristic numbers of ration
al nodal plane curves with at most one cusp, subject to point conditio
ns, tangent conditions and flag conditions, developing techniques akin
to quantum cohomology on a moduli space of stable lifts.