Nombres de Betti des surfaces elliptiques réelles

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.

Minor changes

References in corpus (1)

• Topological properties of real algebraic varieties: du côté de chez Rokhlin

Cited by in corpus (1)

• Real rational surfaces