Fonctionne avec Indico
v3.2.9
In a joint work with V. Kharlamov, we proposed a real enumerative invariant for del Pezzo surfaces based on a signed count of real rational curves, in which the signs are Welschinger invariants combined with certain Pin-weights. It has strong invariance property (independence of the real structures) and recurrence relations which allowed to produce explicit formulas for out invariants.