2-Gorenstein stable surfaces with $K_X^2 = 1$ and $χ(X) = 3$

Fuente: arXiv
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Main Authors: Coughlan, Stephen, Franciosi, Marco, Pardini, Rita, Rollenske, Sönke
Format: Preprint
Published: 2024
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author Coughlan, Stephen
Franciosi, Marco
Pardini, Rita
Rollenske, Sönke
author_facet Coughlan, Stephen
Franciosi, Marco
Pardini, Rita
Rollenske, Sönke
contents The compactification $\overline M_{1,3}$ of the Gieseker moduli space of surfaces of general type with $K_X^2 =1 $ and $χ(X)=3$ in the moduli space of stable surfaces parametrises so-called stable I-surfaces. We classify all such surfaces which are 2-Gorenstein into four types using a mix of algebraic and geometric techniques. We find a new divisor in the closure of the Gieseker component and a new irreducible component of the moduli space.
format Preprint
id arxiv_https___arxiv_org_abs_2409_07854
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle 2-Gorenstein stable surfaces with $K_X^2 = 1$ and $χ(X) = 3$
Coughlan, Stephen
Franciosi, Marco
Pardini, Rita
Rollenske, Sönke
Algebraic Geometry
The compactification $\overline M_{1,3}$ of the Gieseker moduli space of surfaces of general type with $K_X^2 =1 $ and $χ(X)=3$ in the moduli space of stable surfaces parametrises so-called stable I-surfaces. We classify all such surfaces which are 2-Gorenstein into four types using a mix of algebraic and geometric techniques. We find a new divisor in the closure of the Gieseker component and a new irreducible component of the moduli space.
title 2-Gorenstein stable surfaces with $K_X^2 = 1$ and $χ(X) = 3$
topic Algebraic Geometry
url https://arxiv.org/abs/2409.07854