Topology of real algehraic - surfaces

Sin resume

Welschinger invariants revisited

We establish the enumerativity of (original and modified) Welschinger invariants for every real divisor on any real algebraic Del Pezzo surface and give an algebro-geometric proof of the invariance of that count both up to variation of the point constraints on a given surface and variation of the complex structure of the surface itself.Comment: 23 pages; several small changes improving the readabilit