Singular Lagrangians in the Hitchin moduli space and conformal limits

Fuente: arXiv
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Main Author: Kwong, Szehong
Format: Preprint
Published: 2025
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author Kwong, Szehong
author_facet Kwong, Szehong
contents In the moduli space of semistable $\text{SL}(r, \mathbb{C})$-Higgs bundles, we show that there exists a sublocus of the upward flow through a polystable $\mathbb{C}^{*}$-fixed point, which is Lagrangian on its intersection with the stable locus. This intesesction is always non-empty in the case when the Higgs field of the fixed point vanishes, or when the automorphism group of its polystable representative is abelian. Under the same assumptions, we show that the conformal limit of a stable Higgs bundle lying on this locus exists.
format Preprint
id arxiv_https___arxiv_org_abs_2504_14472
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Singular Lagrangians in the Hitchin moduli space and conformal limits
Kwong, Szehong
Differential Geometry
Algebraic Geometry
58D27 (Primary) 14D20, 14D21, 32G13 (Secondary)
In the moduli space of semistable $\text{SL}(r, \mathbb{C})$-Higgs bundles, we show that there exists a sublocus of the upward flow through a polystable $\mathbb{C}^{*}$-fixed point, which is Lagrangian on its intersection with the stable locus. This intesesction is always non-empty in the case when the Higgs field of the fixed point vanishes, or when the automorphism group of its polystable representative is abelian. Under the same assumptions, we show that the conformal limit of a stable Higgs bundle lying on this locus exists.
title Singular Lagrangians in the Hitchin moduli space and conformal limits
topic Differential Geometry
Algebraic Geometry
58D27 (Primary) 14D20, 14D21, 32G13 (Secondary)
url https://arxiv.org/abs/2504.14472