English

The number of vertices of a Fano polytope

Algebraic Geometry 2007-05-23 v3 Combinatorics

Abstract

Let X be a complex, Gorenstein, Q-factorial, toric Fano variety. We prove two conjectures on the maximal Picard number of X in terms of its dimension and its pseudo-index, and characterize the boundary cases. Equivalently, we determine the maximal number of vertices of a simplicial reflexive polytope.

Keywords

Cite

@article{arxiv.math/0411073,
  title  = {The number of vertices of a Fano polytope},
  author = {C. Casagrande},
  journal= {arXiv preprint arXiv:math/0411073},
  year   = {2007}
}

Comments

Final version, to appear in Annales de l'Institut Fourier