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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

We prove stability of rank two tautological bundles on the Hilbert square of a surface (under a mild positivity condition) and compute their Chern classes.

Algebraic Geometry · Mathematics 2009-09-11 Ulrich Schlickewei

The existence of topological invariants analogous to Chern/Pontryagin classes for a standard $SO(D)$ or $SU(N)$ connection, but constructed out of the torsion tensor, is discussed. These invariants exhibit many of the features of the…

High Energy Physics - Theory · Physics 2009-10-30 Osvaldo Chandia , Jorge Zanelli

We provide examples of an explicit submanifold in Bridgeland stabilities space of a local Calabi-Yau, and propose a new variant of definition of stabilities on a triangulated category, which we call a "real variation of stability…

Algebraic Geometry · Mathematics 2014-12-19 Rina Anno , Roman Bezrukavnikov , Ivan Mirkovic

We prove that a given Calabi-Yau threefold with a stable holomorphic vector bundle can be perturbed to a solution of the Strominger system provided that the second Chern class of the vector bundle is equal to the second Chern class of the…

Differential Geometry · Mathematics 2015-05-19 Bjorn Andreas , Mario Garcia-Fernandez

In this paper we prove a new generic vanishing theorem for $X$ a complete homogeneous variety with respect to an action of a connected algebraic group. Let $A, B_0\subset X$ be locally closed affine subvarieties, and assume that $B_0$ is…

Algebraic Geometry · Mathematics 2023-03-27 Jörg Schürmann , Connor Simpson , Botong Wang

In this paper, for compact K\"ahler manifolds with nef cotangent bundle, we study the abundance conjecture and the associated Iitaka fibrations. We show that, for a minimal compact K\"ahler manifold, the second Chern class vanishes if and…

Algebraic Geometry · Mathematics 2022-05-24 Masataka Iwai , Shin-ichi Matsumura

In this paper, we give a partial affirmative answer to the BAB conjecture for $3$-folds in characteristic $p>5$. Specifically, we prove that a set $\mathcal{D}$ of weak Fano $3$-folds over an uncountable algebraically closed field is…

Algebraic Geometry · Mathematics 2024-03-06 Kenta Sato

We study fractional quantum Hall states with quasihole excitations, on Riemann surfaces of arbitrary genus. For configurations with $m$ quasiholes we construct a vector bundle above the $m$-th symmetric power of the curve so that the fiber…

Algebraic Geometry · Mathematics 2026-05-25 Florent Dupont , Semyon Klevtsov

We show by a uniform argument that every index one prime Fano threefold $X$ of genus $g\geq 6$ can be reconstructed as a Brill-Noether locus inside a Bridgeland moduli space of stable objects in the Kuznetsov component $\mathcal{K}u(X)$. As…

Algebraic Geometry · Mathematics 2026-05-28 Augustinas Jacovskis , Zhiyu Liu , Shizhuo Zhang

We consider a version of Hermitian-Einstein equation but perturbed by a Higgs field with a solution called a Donaldson-Thomas instanton on compact K\"ahler threefolds. The equation could be thought of as a generalization of the Hitchin…

Differential Geometry · Mathematics 2013-12-23 Yuuji Tanaka

The key result in the theory of Bridgeland stability conditions is the property that they form a complex manifold. This comes from the fact that given any small deformation of the central charge, there is a unique way to correspondingly…

Algebraic Geometry · Mathematics 2019-09-04 Arend Bayer

This paper gives a description of the full space of Bridgeland stability conditions on the bounded derived category of a contraction algebra associated to a 3-fold flop. The main result is that the stability manifold is the universal cover…

Algebraic Geometry · Mathematics 2022-08-02 Jenny August , Michael Wemyss

Boundary conditions and defects of any codimension are natural parts of any quantum field theory. Surface defects in three-dimensional topological field theories of Turaev-Reshetikhin type have applications to two-dimensional conformal…

High Energy Physics - Theory · Physics 2015-06-22 Jurgen Fuchs , Christoph Schweigert

We introduce the notions of categorical systoles and categorical volumes of Bridgeland stability conditions on triangulated categories. We prove that for any projective K3 surface, there exists a constant C depending only on the rank and…

Algebraic Geometry · Mathematics 2023-05-30 Yu-Wei Fan

This paper introduces the notion of a stability condition on a triangulated category. The motivation comes from the study of Dirichlet branes in string theory, and especially from M.R. Douglas's notion of $\Pi$-stability. From a…

Algebraic Geometry · Mathematics 2007-05-23 Tom Bridgeland

We prove vanishing results for the generalized Miller-Morita-Mumford classes of some smooth bundles whose fiber is a closed manifold that supports a nonpositively curved Riemannian metric. We also find, under some extra conditions, that the…

Algebraic Topology · Mathematics 2017-05-17 Mauricio Bustamante , F. Thomas Farrell , Yi Jiang

Let $X$ be a normal compact K\"ahler space with klt singularities and torsion canonical bundle. We show that $X$ admits arbitrarily small deformations that are projective varieties if its locally trivial deformation space is smooth. We then…

Algebraic Geometry · Mathematics 2021-07-01 Patrick Graf , Martin Schwald

Given a triangulated category $D$ with an action of a fusion category $C$, we study the moduli space $Stab_{C}(D)$ of fusion-equivariant Bridgeland stability conditions on $D$. The main theorem is that the fusion-equivariant stability…

Representation Theory · Mathematics 2025-08-05 Hannah Dell , Edmund Heng , Anthony M. Licata

We establish Gromov-Hausdorff stability of the Riemannian positive mass theorem under the assumption of a Ricci curvature lower bound. More precisely, consider a class of orientable complete uniformly asymptotically flat Riemannian…

Differential Geometry · Mathematics 2021-11-10 Demetre Kazaras , Marcus Khuri , Dan Lee