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Related papers: Donaldson-Thomas Invariants and Flops

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This paper contains some applications of Bridgeland-Douglas stability conditions on triangulated categories, and Joyce's work on counting invariants of semistable objects, to the study of birational geometry. We introduce the notion of…

Algebraic Geometry · Mathematics 2008-03-16 Yukinobu Toda

Motives of Brauer-Severi schemes of Cayley-smooth algebras associated to homogeneous superpotentials are used to compute inductively the motivic Donaldson-Thomas invariants of the corresponding Jacobian algebras. This approach can be used…

Representation Theory · Mathematics 2017-02-14 Lieven Le Bruyn

In this paper, we introduce the notion of parabolic stable pairs on Calabi-Yau 3-folds and invariants counting them. By applying the wall-crossing formula developed by Joyce-Song, Kontsevich-Soibelman, we see that they are related to…

Algebraic Geometry · Mathematics 2011-08-26 Yukinobu Toda

This note gives a one-to-one correspondence between the equivalence classes of a certain type of 2-dimensional Calabi-Yau categories, and certain type of quivers, This is an analogue of the result in Stability structures, motivic…

Algebraic Geometry · Mathematics 2020-01-13 Jie Ren

We construct curve counting invariants for a Calabi-Yau threefold $Y$ equipped with a dominant birational morphism $\pi:Y \to X$. Our invariants generalize the stable pair invariants of Pandharipande and Thomas which occur for the case when…

Algebraic Geometry · Mathematics 2014-07-02 Jim Bryan , David Steinberg

Let X be a Calabi-Yau 3-fold, T=D^b(coh(X)) the derived category of coherent sheaves on X, and Stab(T) the complex manifold of Bridgeland stability conditions Z on T. It is conjectured that one can define rational numbers J^a(Z) for Z in…

High Energy Physics - Theory · Physics 2014-11-11 Dominic Joyce

We modify the standard perfect symmetric obstruction theory for moduli spaces of simple perfect complexes, to the situation of complexes on abelian threefolds with fixed determinant and Fourier-Mukai determinant. As outcome we attach…

Algebraic Geometry · Mathematics 2012-04-23 Martin G. Gulbrandsen

Given a brane tiling on a torus, we provide a new way to prove and generalise the recent results of Szendroi, Mozgovoy and Reineke regarding the Donaldson-Thomas theory of the moduli space of framed cyclic representations of the associated…

Algebraic Geometry · Mathematics 2011-06-13 Ben Davison

We prove a degeneration formula for Donaldson-Thomas theory on Calabi-Yau 4-folds, and apply it to compute zero dimensional invariants on $\mathbb{C}^4$ and on any local curve.

Algebraic Geometry · Mathematics 2024-02-27 Yalong Cao , Gufang Zhao , Zijun Zhou

For $g,n\geq 0$ a 3-dimensional Calabi-Yau $A_\infty$-category $\mathcal C_{g,n}$ is constructed such that a component of the space of Bridgeland stability conditions, $\mathrm{Stab}(\mathcal C_{g,n})$, is a moduli space of quadratic…

Algebraic Geometry · Mathematics 2023-03-06 Fabian Haiden

We study the reduced Donaldson-Thomas theory of abelian threefolds using Bridgeland stability conditions. The main result is the invariance of the reduced Donaldson-Thomas invariants under all derived autoequivalences, up to explicitly…

Algebraic Geometry · Mathematics 2020-07-02 Georg Oberdieck , Dulip Piyaratne , Yukinobu Toda

We establish a geometric interpretation of orientifold Donaldson-Thomas invariants of $\sigma$-symmetric quivers with involution. More precisely, we prove that the cohomological orientifold Donaldson-Thomas invariant is isomorphic to the…

Algebraic Geometry · Mathematics 2016-07-27 Hans Franzen , Matthew B. Young

We prove the period-index conjecture for unramified Brauer classes on abelian threefolds. To do so, we develop a theory of reduced Donaldson-Thomas invariants for 3-dimensional Calabi-Yau categories, with the feature that the noncommutative…

Algebraic Geometry · Mathematics 2024-06-11 James Hotchkiss , Alexander Perry

Fix a Calabi-Yau 3-fold $X$ satisfying the Bogomolov-Gieseker conjecture of Bayer-Macr\`i-Toda, such as the quintic 3-fold. By two different wall-crossing arguments we prove two different explicit formulae relating rank 0 Donaldson-Thomas…

Algebraic Geometry · Mathematics 2022-03-22 Soheyla Feyzbakhsh

Given a complex 4-fold $X$ with an (Calabi-Yau 3-fold) anti-canonical divisor $Y$, we study relative Donaldson-Thomas invariants for this pair, which are elements in the Donaldson-Thomas cohomologies of $Y$. We also discuss gluing formulas…

Algebraic Geometry · Mathematics 2020-08-18 Yalong Cao , Naichung Conan Leung

This is the second paper in a series on intrinsic Donaldson-Thomas theory, a framework for studying the enumerative geometry of general algebraic stacks. In this paper, we present the construction of Donaldson-Thomas invariants for general…

Algebraic Geometry · Mathematics 2025-03-03 Chenjing Bu , Andrés Ibáñez Núñez , Tasuki Kinjo

We show a version of the DT/PT correspondence relating local curve counting invariants, encoding the contribution of a fixed smooth curve in a Calabi-Yau threefold. We exploit a local study of the Hilbert-Chow morphism about the cycle of a…

Algebraic Geometry · Mathematics 2018-01-16 Andrea T. Ricolfi

In this paper, we introduce new enumerative invariants of curves on Calabi-Yau 3-folds via certain stable objects in the derived category of coherent sheaves. We introduce the notion of limit stability on the category of perverse coherent…

Algebraic Geometry · Mathematics 2019-12-19 Yukinobu Toda

We solve the part of the Donaldson-Thomas theory of Calabi-Yau threefolds which comes from super-rigid rational curves. As an application, we prove a version of the conjectural Gromov-Witten/Donaldson-Thomas correspondence for contributions…

Algebraic Geometry · Mathematics 2007-05-23 Kai Behrend , Jim Bryan

The aim of this paper is to study an analog of non-commutative Donaldson-Thomas theory corresponding to the refined topological vertex for small crepant resolutions of toric Calabi-Yau 3-folds. We define the invariants using dimer models…

Algebraic Geometry · Mathematics 2010-10-05 Kentaro Nagao