English

An effective criterion for algebraicity of rational normal surfaces

Algebraic Geometry 2012-11-20 v1

Abstract

We give a novel and effective criterion for algebraicity of rational normal analytic surfaces constructed from resolving the singularity of an irreducible curve-germ on CP2CP^2 and contracting the strict transform of a given line and all but the `last' of the exceptional divisors. As a by-product we construct a new class of analytic non-algebraic rational normal surfaces which are `very close' to being algebraic. These results are local reformulations of some results in (Mondal, 2011) which sets up a correspondence between normal algebraic compactifications of C2C^2 with one irreducible curve at infinity and algebraic curves in C2C^2 with one place at infinity. This article is meant partly to be an exposition to (Mondal, 2011) and we give a proof of the correspondence theorem of (Mondal, 2011) in the `first non-trivial case'.

Keywords

Cite

@article{arxiv.1211.4333,
  title  = {An effective criterion for algebraicity of rational normal surfaces},
  author = {Pinaki Mondal},
  journal= {arXiv preprint arXiv:1211.4333},
  year   = {2012}
}

Comments

20 pages, 6 figures