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Autori principali: Chiu, Christopher Heng, Danelon, Alessandro, Snowden, Andrew
Natura: Preprint
Pubblicazione: 2026
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Accesso online:https://arxiv.org/abs/2605.30726
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author Chiu, Christopher Heng
Danelon, Alessandro
Snowden, Andrew
author_facet Chiu, Christopher Heng
Danelon, Alessandro
Snowden, Andrew
contents A $\mathbf{GL}$-variety is a (typically) infinite dimensional variety $X$ equipped with an action of the infinite general linear group. In recent work of the first two authors with Draisma, a candidate definition for the singular locus of $X$ was put forth. The approach there made use of auxiliary finite dimensional varieties associated to $X$. In this paper, we give a number of characterizations of the singular locus that are intrinsic to $X$. This work shows that the candidate definition is clearly correct, and helps clarify the geometric meaning of singular points.
format Preprint
id arxiv_https___arxiv_org_abs_2605_30726
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle The singular locus of a GL-variety
Chiu, Christopher Heng
Danelon, Alessandro
Snowden, Andrew
Algebraic Geometry
A $\mathbf{GL}$-variety is a (typically) infinite dimensional variety $X$ equipped with an action of the infinite general linear group. In recent work of the first two authors with Draisma, a candidate definition for the singular locus of $X$ was put forth. The approach there made use of auxiliary finite dimensional varieties associated to $X$. In this paper, we give a number of characterizations of the singular locus that are intrinsic to $X$. This work shows that the candidate definition is clearly correct, and helps clarify the geometric meaning of singular points.
title The singular locus of a GL-variety
topic Algebraic Geometry
url https://arxiv.org/abs/2605.30726