English

Examples of vanishing Gromov--Witten--Welschinger invariants

Algebraic Geometry 2014-01-13 v1 Symplectic Geometry

Abstract

We give examples of real enumerative problems without real solutions. Most of the examples concern rational curves in CP3{\mathbb C}{\mathbb P}^3 passing through a real set of points and lines.

Keywords

Cite

@article{arxiv.1401.2387,
  title  = {Examples of vanishing Gromov--Witten--Welschinger invariants},
  author = {János Kollár},
  journal= {arXiv preprint arXiv:1401.2387},
  year   = {2014}
}