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arXiv · 2002.10550

A codimension 2 component of the Gieseker-Petri locus

Margherita Lelli-Chiesa
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Abstract

We show that the Brill-Noether locus M^3_{18,16} is an irreducible component of the Gieseker-Petri locus in genus 18 having codimension 2 in the moduli space of curves. This result disproves a conjecture predicting that the Gieseker-Petri locus is always divisorial.

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Margherita Lelli-Chiesa. 2020-02-24. A codimension 2 component of the Gieseker-Petri locus. https://arxiv.org/abs/2002.10550

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