On Welschinger invariants of symplectic 4-manifolds (Q906566)
From MaRDI portal
scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On Welschinger invariants of symplectic 4-manifolds |
scientific article |
Statements
On Welschinger invariants of symplectic 4-manifolds (English)
0 references
22 January 2016
0 references
Summary: We prove the vanishing of many Welschinger invariants of real symplectic 4-manifolds. In some particular instances, we also determine their sign and show that they are divisible by a large power of 2. Those results are a consequence of several relations among Welschinger invariants obtained by a real version of symplectic sum formula. In particular, this note contains proofs of results announced in [the authors, Rend. Semin. Mat. Univ. Padova 130, 147--153 (2013; Zbl 1292.14034)].
0 references
real enumerative geometry
0 references
Welschinger invariants
0 references
Gromov-Witten invariants
0 references
symplectic sum formula
0 references
symplectic field theory
0 references
