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We give another proof of Le Potier's result and some variants on moduli spaces of semistable sheaves on the projective plane, using the Bridgeland stability conditions. As an application we study the wall-crossing phenomena of the Hilbert…

Algebraic Geometry · Mathematics 2010-03-30 Ryo Ohkawa

We prove that, for a natural class of Bridgeland stability conditions on $\mathbb{P}^1\times\mathbb{P}^1$ and the blow-up of $\mathbb{P}^2$ at a point, the moduli spaces of Bridgeland semistable objects are projective. Our technique is to…

Algebraic Geometry · Mathematics 2015-06-30 Daniele Arcara , Eric Miles

We show that the moduli stacks of Bridgeland semistable objects on smooth projective 3-folds are proper algebraic stacks of finite type, if they satisfy the Bogomolov-Gieseker (BG for short) inequality conjecture proposed by Bayer, Macr\`i…

Algebraic Geometry · Mathematics 2016-01-28 Dulip Piyaratne , Yukinobu Toda

We give a complete description of the Bridgeland stability manifold for the bounded derived category of holomorphic triples over a smooth projective curve of genus 1 as a connected, four dimensional complex manifold.

Algebraic Geometry · Mathematics 2020-02-27 Eva Martínez-Romero , Alejandra Rincón-Hidalgo , Arne Rüffer

For each $0<\alpha<\frac{1}{2}$, there exists a Bayer--Lahoz--Macr{\`{\i}}--Stellari inducing Bridgeland stability condition $\sigma(\alpha)$ on a Kuznetsov component $\mathrm{Ku}(Q)$ of the smooth quadric threefold $Q$. We obtain the…

Algebraic Geometry · Mathematics 2025-05-13 Song Yang

We construct proper good moduli spaces for moduli stacks of Bridgeland semistable orthosymplectic complexes on a complex smooth projective variety, which we propose as a candidate for compactifying moduli spaces of principal bundles for the…

Algebraic Geometry · Mathematics 2026-01-15 Chenjing Bu

We study the birational geometry of moduli spaces of semistable sheaves on the projective plane via Bridgeland stability conditions. We show that the entire MMP of their moduli spaces can be run via wall-crossing. Via a description of the…

Algebraic Geometry · Mathematics 2019-03-13 Chunyi Li , Xiaolei Zhao

We give a natural family of Bridgeland stability conditions on the derived category of a smooth projective complex surface S and describe ``wall-crossing behavior'' for objects with the same invariants as $\cO_C(H)$ when H generates Pic(S)…

Algebraic Geometry · Mathematics 2007-08-17 Daniele Arcara , Aaron Bertram , Max Lieblich

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

Let $(X,H)$ be a smooth, projective, polarized surface over $\mathbb{C}$, and let $v \in K_{\mathrm{num}}(X)$ be a class of positive rank. We prove that for certain Bridgeland stability conditions $\sigma = (\mathcal{A}, Z)$ "on the…

Algebraic Geometry · Mathematics 2020-07-27 Tuomas Tajakka

For a K3 surface X and its bounded derived category of coherent sheaves D(X), we have the notion of stability conditions on D(X) in the sense of T.Bridgeland. In this paper, we show that the moduli stack of semistable objects in D(X) with a…

Algebraic Geometry · Mathematics 2007-07-12 Yukinobu Toda

We consider Bridgeland stability conditions for three-folds conjectured by Bayer-Macr\`i-Toda in the case of Picard rank one. We study the differential geometry of numerical walls, characterizing when they are bounded, discussing possible…

Algebraic Geometry · Mathematics 2026-01-07 Marcos Jardim , Antony Maciocia

We show that, under mild conditions, the space of numerical Bridgeland stability conditions Stab(T) on a triangulated category T is complete. In particular the metric on a full component of Stab(T) for which the central charges factor…

Algebraic Geometry · Mathematics 2014-02-26 Jon Woolf

We study projectivity of moduli spaces on the DT/PT wall crossing in Bridgeland and polynomial stability on a smooth, projective threefold. First, we construct a globally generated line bundle on the moduli stack of higher-rank…

Algebraic Geometry · Mathematics 2026-04-03 Mihai Pavel , Tuomas Tajakka

We apply Bridgeland stability conditions machinery to describe the geometry of some classical moduli spaces associated with canonical genus four curves in $\mathbb{P}^3$ via an effective control over its wall-crossing. These moduli spaces…

Algebraic Geometry · Mathematics 2021-07-30 Fatemeh Rezaee

We study Bridgeland moduli spaces of semistable objects of $(-1)$-classes and $(-4)$-classes in the Kuznetsov components on index one prime Fano threefold $X_{4d+2}$ of degree $4d+2$ and index two prime Fano threefold $Y_d$ of degree $d$…

Algebraic Geometry · Mathematics 2021-07-13 Zhiyu Liu , Shizhuo Zhang

In this paper, we give an expository account of the geometric properties of the moduli stack of $G$-bundles. For $G$ an algebraic group over a base field and $X \to S$ a flat, finitely presented, projective morphism of schemes, we give a…

Algebraic Geometry · Mathematics 2011-04-27 Jonathan Wang

We prove the existence of Bridgeland stability conditions on the Kuznetsov components of Gushel-Mukai varieties, and describe the structure of moduli spaces of Bridgeland semistable objects in these categories in the even-dimensional case.…

Algebraic Geometry · Mathematics 2023-05-19 Alexander Perry , Laura Pertusi , Xiaolei Zhao

We develop a framework relating semiorthogonal decompositions of a triangulated category $\mathcal{C}$ to paths in its space of stability conditions. We prove that when $\mathcal{C}$ is the homotopy category of a smooth and proper…

Algebraic Geometry · Mathematics 2024-03-28 Daniel Halpern-Leistner , Jeffrey Jiang , Antonios-Alexandros Robotis

We give a new proof of the following theorem: moduli spaces of stable complexes on a complex projective K3 surface, with primitive Mukai vector and with respect to a generic Bridgeland stability condition, are hyperk\"{a}hler varieties of…

Algebraic Geometry · Mathematics 2021-03-18 Alessio Bottini
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