Mathematics – Algebraic Geometry
Scientific paper
2008-08-26
Adv. Geom. 11 (2011), no.1, 49-72
Mathematics
Algebraic Geometry
23 pages, corrections to match the published version
Scientific paper
There is an equation relating numbers of curves on F_0 satisfying incidence conditions and numbers of curves on F_2 satisfying incidence conditions. The purpose of this paper is to give a tropical proof of this equation in the case of rational curves. We use induction on the degree and two Kontsevich-type formulas for curves on F_0 and on F_2. The formula for F_2 was not known before and is proved using tropical geometry.
Franz Marina
Markwig Hannah
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