English

Nombres de Betti des surfaces elliptiques r\'{e}elles

Algebraic Geometry 2009-03-31 v2

Abstract

We prove a new bound for the number of connected components of a real regular elliptic surface with a real section and we show the sharpness of this bound. Furthermore, all possible values for the Betti numbers of such a surface are realized.

Keywords

Cite

@article{arxiv.math/0604131,
  title  = {Nombres de Betti des surfaces elliptiques r\'{e}elles},
  author = {Mouadh Akriche and Frédéric Mangolte},
  journal= {arXiv preprint arXiv:math/0604131},
  year   = {2009}
}

Comments

Minor changes

R2 v1 2026-07-22T17:34:03.090Z