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Related papers: A guide to wall crossing for moduli of varieties

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We prove, under suitable conditions, that there exist wall-crossing and reduction morphisms for moduli spaces of stable log pairs in all dimensions as one varies the coefficients of the divisor.

Algebraic Geometry · Mathematics 2023-01-27 Kenneth Ascher , Dori Bejleri , Giovanni Inchiostro , Zsolt Patakfalvi

We construct proper good moduli spaces parametrizing K-polystable $\mathbb{Q}$-Gorenstein smoothable log Fano pairs $(X, cD)$, where $X$ is a Fano variety and $D$ is a rational multiple of the anti-canonical divisor. We then establish a…

Algebraic Geometry · Mathematics 2024-05-01 Kenneth Ascher , Kristin DeVleming , Yuchen Liu

We describe the K-moduli spaces of weighted hypersurfaces of degree $2(n+3)$ in $\mathbb{P}(1,2,n+2,n+3)$. We show that the K-polystable limits of these weighted hypersurfaces are also weighted hypersurfaces of the same degree in the same…

Algebraic Geometry · Mathematics 2026-05-01 In-Kyun Kim , Yuchen Liu , Chengxi Wang

In this paper, we explore the wall crossing phenomenon for K-stability, and apply it to explain the wall crossing for K-moduli stacks and K-moduli spaces.

Algebraic Geometry · Mathematics 2023-04-13 Chuyu Zhou

We describe new explicit examples of moduli spaces of Bridgeland semistable objects on surfaces, parametrizing objects whose numerical class agrees with the class of a point. This follows ideas of Tramel and Xia, using stability conditions…

Algebraic Geometry · Mathematics 2025-09-15 Nicolás Vilches

We study the wall-crossing of the moduli spaces $\mathbf{M}^\alpha (d,1)$ of $\alpha$-stable pairs with linear Hilbert polynomial $dm+1$ on the projective plane $\mathbb{P}^2$ as we alter the parameter $\alpha$. When $d$ is 4 and 5, at each…

Algebraic Geometry · Mathematics 2015-05-29 Jinwon Choi , Kiryong Chung

In this paper, we present a general wall crossing theory for K-stability and K-moduli of log Fano pairs whose boundary divisors can be non-proportional to the anti-canonical divisor. Along the way, we prove that there are only finitely many…

Algebraic Geometry · Mathematics 2026-04-14 Yuchen Liu , Chuyu Zhou

In this paper, we describe the wall-crossing of the two parameter K-moduli space of pairs (P 2,aQ + bL), where Q is a plane quintic curve and L is a line.

Algebraic Geometry · Mathematics 2024-11-07 Long Pan

We study the wall-crossing for moduli spaces of coherent systems of dimension one and order one on a smooth projective variety over the complex numbers. We compute the topological Euler characteristic of the moduli spaces in the particular…

Algebraic Geometry · Mathematics 2022-04-05 Mario Maican

We describe the 6-dimensional compact K-moduli space of Fano threefolds in deformation family No 2.18. These Fano threefolds are double covers of $\mathbb P^1\times\mathbb P^2$ branched along smooth $(2,2)$-surfaces, and…

Algebraic Geometry · Mathematics 2024-03-15 Kristin DeVleming , Lena Ji , Patrick Kennedy-Hunt , Ming Hao Quek

The K-moduli theory provides a different compactification of moduli spaces of curves. As a general genus six curve can be canonically embedded into the smooth quintic del Pezzo surface, we study in this paper the K-moduli spaces…

Algebraic Geometry · Mathematics 2023-09-26 Junyan Zhao

We present the scalar moduli stabilization from the perspective of the real intrinsic geometry. In this paper, we describe the physical nature of the vacuum moduli fluctuations of an arbitrary Fayet configuration. For finitely many abelian…

High Energy Physics - Theory · Physics 2015-05-20 Stefano Bellucci , Bhupendra Nath Tiwari

We study the K-moduli space of products of Fano varieties in relation to the product of K-moduli spaces of the product components. We show that there exists a well-defined morphism from the product of K-moduli stacks of Fano varieties to…

Algebraic Geometry · Mathematics 2024-05-15 Thedoros S. Papazachariou

We study the intersection theory on the moduli spaces of maps of $n$-pointed curves $f:(C,s_1,... s_n)\to V$ which are stable with respect to a weight data $(a_1,..., a_n)$, $0\le a_i\le 1$. After describing the structure of these moduli…

Algebraic Geometry · Mathematics 2007-11-13 Valery Alexeev , G. Michael Guy

This paper solves the global moduli problem for regular holonomic D-modules with normal crossing singularities on a nonsingular complex projective variety. This is done by introducing a level structure (which gives rise to…

alg-geom · Mathematics 2008-02-03 Nitin Nitsure

We consider the moduli space of log smooth pairs formed by a cubic surface and an anticanonical divisor. We describe all compactifications of this moduli space which are constructed using Geometric Invariant Theory and the anticanonical…

Algebraic Geometry · Mathematics 2020-10-02 Patricio Gallardo , Jesus Martinez-Garcia

This paper surveys some applications of moduli theory to issues concerning the distribution of rational points on algebraic varieties. It will appear on the proceedings of the Fano Conference.

Algebraic Geometry · Mathematics 2007-05-23 Lucia Caporaso

We investigate the wall-crossing phenomena for moduli of framed quiver representations. These spaces are expected to be highly useful in capturing the representation theoretic essence of special functions in integrable systems. Within this…

Algebraic Geometry · Mathematics 2023-06-06 Ryo Ohkawa

We construct reduction and wall-crossing morphisms between the moduli spaces of stable pairs as the coefficients vary, generalizing the earlier work of Ascher, Bejleri, Inchiostro and Patakfalvi which deals with the klt case. Along the…

Algebraic Geometry · Mathematics 2023-11-03 Fanjun Meng , Ziquan Zhuang

The extension from toric varieties to quantum toric stacks allows for the study of moduli spaces of toric objects with fixed combinatorial structures, as we now consider general finitely generated subgroups of $\mathbb{R}^n$ as "lattices."…

Algebraic Geometry · Mathematics 2025-04-03 Antoine Boivin
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