English

On uniformly effective birationality and the Shafarevich Conjecture over curves

Algebraic Geometry 2011-05-18 v1 Complex Variables Number Theory

Abstract

Let BB be a smooth projective curve of genus gg, and SBS \subset B be a finite subset of cardinality ss. We give an effective upper bound on the number of deformation types of admissible families of canonically polarized manifolds of dimension nn with canonical volume vv over BB with prescribed degeneracy locus SS. The effective bound only depends on the invariants g,s,ng, s, n and vv. The key new ingredient which allows for this kind of result is a careful study of effective birationality for families of canonically polarized manifolds.

Keywords

Cite

@article{arxiv.1105.3439,
  title  = {On uniformly effective birationality and the Shafarevich Conjecture over curves},
  author = {Gordon Heier and Shigeharu Takayama},
  journal= {arXiv preprint arXiv:1105.3439},
  year   = {2011}
}

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22 pages