English

Curve selection for finite-type ideals

Complex Variables 2007-05-23 v2 Algebraic Geometry

Abstract

Let a\mathfrak a be an ideal of holomorphic functions vanishing only at the origin in Cn\mathbb{C}^n. The \textit{type} of a\mathfrak a is an invariant that measures the order of vanishing of the functions in a\mathfrak a along holomorphic curves; this invariant is of importance in the study of subelliptic estimates and subelliptic multiplier ideal sheaves. Recently there has been some interest in the question of which curves actually compute the type. In this note we prove that it is computed by one of the analytic irreducible components of the intersection of n1n-1 general functions in a\mathfrak a.

Keywords

Cite

@article{arxiv.math/0506557,
  title  = {Curve selection for finite-type ideals},
  author = {Gordon Heier and Robert Lazarsfeld},
  journal= {arXiv preprint arXiv:math/0506557},
  year   = {2007}
}

Comments

This paper has become part of "Finite type and the effective Nullstellensatz" (math.AG/0603666)