Curve selection for finite-type ideals

Gordon Heier; Robert Lazarsfeld

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Curve selection for finite-type ideals

Gordon Heier·Robert Lazarsfeld

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Abstract

Let $\mathfrak a$ be an ideal of holomorphic functions vanishing only at the origin in $\mathbb{C}^n$. The \textit{type} of $\mathfrak a$ is an invariant that measures the order of vanishing of the functions in $\mathfrak a$ 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 $n-1$ general functions in $\mathfrak a$.

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Gordon Heier, Robert Lazarsfeld. 2006-03-28. Curve selection for finite-type ideals. https://arxiv.org/abs/math/0506557

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