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Related papers: The Integral Chow Ring of $\bar{M}_2$

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This paper computes the integral Chow ring of the moduli space $M_2^{ct}$ of stable genus 2 curves of compact type. This is done by excising boundary strata from $\bar M_2$ one-by-one. During this process, we determine the Chow rings of all…

Algebraic Geometry · Mathematics 2025-03-10 Joseph Helfer , Eric Jovinelly , Eric Larson , Anda Tenie , Chengxi Wang

In this paper we compute the integral Chow ring of the moduli stack $\mathcal{R}_2$ of Prym pairs of genus 2 with integral coefficients.

Algebraic Geometry · Mathematics 2025-10-10 Alessio Cela , Aitor Iribar Lopez

In this paper we introduce the moduli stack $\widetilde{\mathscr{M}}_{g,n}$ of $n$-marked stable at most cuspidal curves of genus $g$ and we use it to determine the integral Chow ring of $\overline{\mathscr{M}}_{2,1}$. Along the way, we…

Algebraic Geometry · Mathematics 2024-10-30 Andrea Di Lorenzo , Michele Pernice , Angelo Vistoli

This paper is the fourth in a series of four papers aiming to describe the (almost integral) Chow ring of $\overline{\mathcal{M}}_3$, the moduli stack of stable curves of genus $3$. In this paper, we finally compute the Chow ring of…

Algebraic Geometry · Mathematics 2023-03-27 Michele Pernice

In this paper we compute the integral Chow ring of the moduli space of stable elliptic curves with three marked points by combining several patching techniques, including higher Chow groups with $\ell$-adic coefficients.

Algebraic Geometry · Mathematics 2024-10-07 Martin Bishop

In this work, we introduce the moduli stack $\widetilde{\mathcal{M}}_{g,n}^r$ of $n$-pointed, $A_r$-stable curves of genus $g$ and use it to compute the Chow ring of $\overline{\mathcal{M}}_3$. As a byproduct, we also compute the Chow ring…

Algebraic Geometry · Mathematics 2023-01-10 Michele Pernice

This paper is the third in a series of four papers aiming to describe the (almost integral) Chow ring of $\overline{\mathcal{M}}_3$, the moduli stack of stable curves of genus $3$. In this paper, we compute the Chow ring of…

Algebraic Geometry · Mathematics 2023-03-10 Michele Pernice

We compute a presentation for the integral Chow rings of the moduli stacks of degree $2$ maps from smooth rational curves to projective space $\mathbb{P}^r$, as a quotient of a three-variable polynomial ring. The relations as $r$ varies…

Algebraic Geometry · Mathematics 2026-04-23 Renzo Cavalieri , Damiano Fulghesu

We compute the integral Chow ring of the moduli stack of smooth elliptic curves with $n$ marked points for $3\leq n\leq 10$.

Algebraic Geometry · Mathematics 2023-11-21 Martin Bishop

This paper is the first in a series of four papers aiming to describe the (almost integral) Chow ring of $\bar{\mathcal{M}}_3$, the moduli stack of stable curves of genus $3$. In this paper, we introduce the moduli stack…

Algebraic Geometry · Mathematics 2023-02-22 Michele Pernice

We study the integral Chow ring of the stack $\mathcal{H}_{g,n}$ parametrizing $n$-pointed smooth hyperelliptic curves of genus $g$. We compute the integral Chow ring of $\mathcal{H}_{g,n}$ for $n=1,2$ completely, while for $3\leq…

Algebraic Geometry · Mathematics 2026-04-14 Alberto Landi

Let $g$ be an even positive integer. In this paper we compute the integral Chow ring of the stack of smooth hyperelliptic curves of genus $g$.

Algebraic Geometry · Mathematics 2009-04-29 Dan Edidin , Damiano Fulghesu

In this paper we compute the integral Chow ring of the stack of smooth uniform cyclic covers of the projective line and we give explicit generators.

Algebraic Geometry · Mathematics 2012-04-23 Damiano Fulghesu , Filippo Viviani

This paper is the first in a series dedicated to computing the integral Chow rings of the moduli stacks of Prym pairs. In this work, we compute the Chow ring for Prym pairs arising from a single pair of Weierstrass points and from at most…

Algebraic Geometry · Mathematics 2025-07-15 Alessio Cela , Alberto Landi

We compute the rational Chow ring of the moduli stack of planar nodal curves of fixed degree and express it in terms of tautological classes. Along the way, we extend Vial's results on Chow groups of Brauer-Severi varieties to…

Algebraic Geometry · Mathematics 2025-01-10 Alessio Cela , Ajith Urundolil Kumaran , Xiaohan Yan

We continue the study of the Chow ring of the moduli stack $\mathfrak{M}_{g,n}$ of prestable curves begun in [arXiv:2012.09887v2]. In genus $0$, we show that the Chow ring of $\mathfrak{M}_{0,n}$ coincides with the tautological ring and…

Algebraic Geometry · Mathematics 2021-07-21 Younghan Bae , Johannes Schmitt

In this work we describe the Chen-Ruan cohomology of the moduli stacks of smooth and stable genus 2 pointed curves, and its algebraic counterpart: the stringy Chow ring. In the first half of the paper we compute the additive structure of…

Algebraic Geometry · Mathematics 2015-03-17 Nicola Pagani

In this paper we introduce the stack of polarized twisted conics and we use it to give a new point of view on $\overline{\mathcal{M}}_2$. In particular, we present a new and independent approach to the computation of the integral Chow ring…

Algebraic Geometry · Mathematics 2021-03-25 Andrea Di Lorenzo , Angelo Vistoli

This paper is the second in a series devoted to describing the integral Chow ring of the moduli stacks $\mathcal{RH}_g$ of hyperelliptic Prym pairs. For fixed genus $g$, the stack $\mathcal{RH}_g$ is the disjoint union of $\lfloor (g+1)/2…

Algebraic Geometry · Mathematics 2025-08-05 Alessio Cela , Alberto Landi

We give a presentation for the Chow ring of the moduli space of degree two stable maps from two-pointed rational curves to P^1. Also, integrals of of all degree four monomials in the hyperplane pullbacks and boundary divisors of this ring…

Algebraic Geometry · Mathematics 2007-05-23 Jonathan A. Cox
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