Tropical descendant invariants with line constraints

Abstract Via correspondence theorems, rational log Gromov–Witten invariants of the plane can be computed in terms tropical geometry. For many cases, there exists a range algorithms to compute tropically: for instance, are (generalised) lattice path counts and floor diagram techniques. So far, cases which exist do not extend non‐stationary descendant invariants, that is, those where Psi‐conditions have matched up with evaluation point. The case satisfying point conditions (without Psi‐conditions) one Psi‐condition any power combined line plays particularly important role, because it shows mirror symmetry as contributions coefficients ‐function. We provide recursive formulas numbers via methods. Our method is inspired by proof WDVV equations. also our study involving two lines, both paired Psi‐condition, appearing 1.