A Caporaso-Harris type formula for Welschinger invariants of real toric Del Pezzo surfaces
arXiv:math/0608549
Abstract
We define a series of relative tropical Welschinger-type invariants of real toric surfaces. In the Del Pezzo case, these invariants can be seen as real tropical analogs of relative Gromov-Witten invariants, and are subject to a recursive formula. As application we obtain new formulas for Welschinger invariants of real toric Del Pezzo surfaces.
47 pages, 6 figures; recursive formulas corrected (missing terms added)