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We describe spaces of Bridgeland stability conditions on certain triangulated categories associated to Coxeter systems. These categories are defined algebraically using the category of modules for zigzag algebras associated to Coxeter…

Representation Theory · Mathematics 2024-12-23 Edmund Heng , Anthony M. Licata

We find stability conditions ([Do], [Br]) on some derived categories of differential graded modules over a graded algebra studied in [RZ], [KS]. This category arises in both derived Fukaya categories and derived categories of coherent…

Algebraic Geometry · Mathematics 2007-05-23 R. P. Thomas

In this paper, we prove a Clifford type inequality for the curve $X_{2,2,2,4}$, which is the intersection of a quartic and three general quadratics in $\mathbb{P}^5$. We thus prove a stronger Bogomolov-Gieseker inequality for characters of…

Algebraic Geometry · Mathematics 2022-11-01 Shengxuan Liu

We survey some aspects of stability conditions both in general and on the derived category of coherent sheaves on a surface, with applications to the birational geometry of certain holomorphic symplectic varieties.

Algebraic Geometry · Mathematics 2019-01-11 François Charles

This article discusses the Bridgeland stability of some sheaves on the blow-up of $\mathbb{P}^{2}$ at two general points. We have determined the destabilizing objects of the line bundles and have shown that $\mathscr{O}(E)|_{E}$ is…

Algebraic Geometry · Mathematics 2025-05-22 Yuki Mizuno , Tomoki Yoshida

We develop a theory of Bridgeland stability conditions and moduli spaces of semistable objects for a family of varieties. Our approach is based on and generalizes previous work by Abramovich-Polishchuk, Kuznetsov, Lieblich, and…

Algebraic Geometry · Mathematics 2022-01-26 Arend Bayer , Martí Lahoz , Emanuele Macrì , Howard Nuer , Alexander Perry , Paolo Stellari

We introduce a general method to induce Bridgeland stability conditions on semiorthogonal components of triangulated categories. In particular, we prove the existence of Bridgeland stability conditions on the Kuznetsov component of the…

Algebraic Geometry · Mathematics 2023-06-14 Arend Bayer , Martí Lahoz , Emanuele Macrì , Paolo Stellari

In this short note, we provide a broad class of examples of stability conditions on the category of coherent sheaves which generalise Gieseker stability. We refer to them as "adapted to coherent sheaves" and they admit Harder--Narasimhan…

Algebraic Geometry · Mathematics 2025-09-08 Rémi Delloque

Let $X$ be a smooth projective variety over $\mathbb C$. In this paper, we prove that $\mathrm{D}^b(X)$, the bounded derived category of coherent sheaves on $X$, always admits stability conditions in the sense of Bridgeland.

Algebraic Geometry · Mathematics 2026-02-02 Chunyi Li

We give further counterexamples to the conjectural construction of Bridgeland stability on threefolds due to Bayer, Macr\`i, and Toda. This includes smooth projective threefolds containing a divisor that contracts to a point, and…

Algebraic Geometry · Mathematics 2019-09-04 Cristian Martinez , Benjamin Schmidt , Omprokash Das

We show that the minimal model program on any smooth projective surface is realized as a variation of the moduli spaces of Bridgeland stable objects in the derived category of coherent sheaves.

Algebraic Geometry · Mathematics 2019-02-20 Yukinobu Toda

Let $R$ be a commutative ring. We introduce the notion of support of objects in an $R$-linear triangulated category. As an application, we study the non-existence of Bridgeland stability conditions on $R$-linear triangulated categories.

Algebraic Geometry · Mathematics 2023-01-11 Kotaro Kawatani

We introduce the cluster exchange groupoid associated to a non-degenerate quiver with potential, as an enhancement of the cluster exchange graph. In the case that arises from an (unpunctured) marked surface, where the exchange graph is…

Geometric Topology · Mathematics 2019-11-18 Alastair King , Yu Qiu

We construct a topological embedding of the maximal connected component of Bridgeland stability conditions of a (twisted) Abelian surface into the distinguished connected component of the stability manifold of the associated (twisted)…

Algebraic Geometry · Mathematics 2012-09-20 Magnus Engenhorst

Let $X$ be a smooth complex projective variety. In 2002, Bridgeland defined a notion of stability for the objects in $D^b(X)$, the bounded derived category of coherent sheaves on $X$, which generalized the notion of slope stability for…

Algebraic Geometry · Mathematics 2018-08-28 Rebecca Tramel , Bingyu Xia

Categorically, we introduce the Calabi-Yau-$\mathbb{X}$ categories $\mathcal{D}_{\mathbb{X}}$ of a graded marked surface $\mathbf{S}^\lambda$, as a $q$-deformation of the topological Fukaya category $\mathcal{D}_\infty$ of…

Algebraic Geometry · Mathematics 2022-10-21 Akishi Ikeda , Yu Qiu

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 propose the notion of stability on a triangulated category that is a generalization of the T.Bridgeland's stability data. We establish connections between stabilities and t-structures on a category and as application we get the…

Algebraic Geometry · Mathematics 2007-05-23 A. Gorodentscev , S. Kuleshov , A. Rudakov

We propose a notion of multi-scale stability conditions with the goal of providing a smooth compactification of the quotient of the space of projectivized Bridgeland stability conditions by the group of autoequivalence. For the case of the…

Algebraic Geometry · Mathematics 2024-09-24 Anna Barbieri , Martin Möller , Jeonghoon So

This is a survey on two closely related subjects. First, we review the study of topological structure of `finite type' components of spaces of Bridgeland's stability conditions on triangulated categories. The key is to understand…

Representation Theory · Mathematics 2018-07-09 Yu Qiu