Small resolutions of moduli spaces of scaled curves

Fuente: arXiv
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Main Author: Zahariuc, Adrian
Format: Preprint
Published: 2022
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author Zahariuc, Adrian
author_facet Zahariuc, Adrian
contents We construct small resolutions of the moduli space $\overline{Q}_n$ of stable scaled $n$-marked lines of Ziltener and Ma'u--Woodward and of the moduli space $\overline{P}_n$ of stable $n$-marked ${\mathbb G}_a$-rational trees introduced in earlier work. The resolution of $\overline{P}_n$ is the augmented wonderful variety corresponding to the graphic matroid of the complete graph. The resolution of $\overline{Q}_n$ is a further blowup, also a wonderful model of an arrangement in ${\mathbb P}^{n-1}$.
format Preprint
id arxiv_https___arxiv_org_abs_2208_03721
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Small resolutions of moduli spaces of scaled curves
Zahariuc, Adrian
Algebraic Geometry
Combinatorics
14N20, 14H10, 14E15, 05B35
We construct small resolutions of the moduli space $\overline{Q}_n$ of stable scaled $n$-marked lines of Ziltener and Ma'u--Woodward and of the moduli space $\overline{P}_n$ of stable $n$-marked ${\mathbb G}_a$-rational trees introduced in earlier work. The resolution of $\overline{P}_n$ is the augmented wonderful variety corresponding to the graphic matroid of the complete graph. The resolution of $\overline{Q}_n$ is a further blowup, also a wonderful model of an arrangement in ${\mathbb P}^{n-1}$.
title Small resolutions of moduli spaces of scaled curves
topic Algebraic Geometry
Combinatorics
14N20, 14H10, 14E15, 05B35
url https://arxiv.org/abs/2208.03721