The Hitchin morphism for K-trivial varieties

Fuente: arXiv
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Main Authors: Patel, Aryaman, Weissmann, Dario
Format: Preprint
Published: 2026
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author Patel, Aryaman
Weissmann, Dario
author_facet Patel, Aryaman
Weissmann, Dario
contents We study the Hitchin morphism for higher dimensional varieties and show that, for a certain class of varieties which we call r-small, the set-theoretic image of the Hitchin morphism from the Dolbeault moduli space coincides with the spectral base. In other words, a stronger version of the conjecture of Chen and Ngô holds for this class of varieties, which includes K-trivial varieties. As part of the proof, we slightly modify the construction of spectral covers to obtain normal spectral covers.
format Preprint
id arxiv_https___arxiv_org_abs_2604_03217
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle The Hitchin morphism for K-trivial varieties
Patel, Aryaman
Weissmann, Dario
Algebraic Geometry
We study the Hitchin morphism for higher dimensional varieties and show that, for a certain class of varieties which we call r-small, the set-theoretic image of the Hitchin morphism from the Dolbeault moduli space coincides with the spectral base. In other words, a stronger version of the conjecture of Chen and Ngô holds for this class of varieties, which includes K-trivial varieties. As part of the proof, we slightly modify the construction of spectral covers to obtain normal spectral covers.
title The Hitchin morphism for K-trivial varieties
topic Algebraic Geometry
url https://arxiv.org/abs/2604.03217