manuscripta mathematica

, Volume 129, Issue 3, pp 381–399

Elliptic curve configurations on Fano surfaces

Authors

    • Graduate School of Mathematical SciencesThe University of Tokyo

DOI: 10.1007/s00229-009-0264-5

Abstract

The elliptic curves on a surface of general type constitute an obstruction for the cotangent sheaf to be ample. In this paper, we give the classification of the configurations of the elliptic curves on the Fano surface of a smooth cubic threefold. That means that we give the number of such curves, their intersections and a plane model. This classification is linked to the classification of the automorphism groups of theses surfaces.

Mathematics Subject Classification (2000)

Primary 14J29 Secondary 14J45 14J50 14J70 32G20

Copyright information

© Springer-Verlag 2009