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Related papers: A flop formula for Donaldson-Thomas invariants

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Let $X$ be a smooth threefold with a simple normal crossings divisor $D$. We construct the Donaldson-Thomas theory of the pair $(X|D)$ enumerating ideal sheaves on $X$ relative to $D$. These moduli spaces are compactified by studying…

Algebraic Geometry · Mathematics 2024-01-08 Davesh Maulik , Dhruv Ranganathan

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

We provide a transformation formula of non-commutative Donaldson-Thomas invariants under a composition of mutations. Consequently, we get a description of a composition of cluster transformations in terms of quiver Grassmannians. As an…

Algebraic Geometry · Mathematics 2019-12-19 Kentaro Nagao

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

A deformed Donaldson-Thomas (dDT) connection is a Hermitian connection of a Hermitian line bundle over a $G_2$-manifold $X$ satisfying a certain nonlinear PDE. This is considered to be the mirror of a (co)associative cycle in the context of…

Differential Geometry · Mathematics 2023-09-22 Kotaro Kawai

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 construct semiorthogonal decompositions of Donaldson-Thomas (DT) categories for reduced curve classes on local surfaces into products of quasi-BPS categories and Pandharipande-Thomas (PT) categories, giving a categorical analogue of the…

Algebraic Geometry · Mathematics 2026-01-14 Tudor Pădurariu , Yukinobu Toda

We prove the flow tree formula conjectured by Alexandrov and Pioline which computes Donaldson-Thomas invariants of quivers with potentials in terms of a smaller set of attractor invariants. This result is obtained as a particular case of a…

Representation Theory · Mathematics 2022-09-16 Hülya Argüz , Pierrick Bousseau

We study Hilbert schemes of points on a smooth projective Calabi-Yau 4-fold $X$. We define $\mathrm{DT}_4$ invariants by integrating the Euler class of a tautological vector bundle $L^{[n]}$ against the virtual class. We conjecture a…

Algebraic Geometry · Mathematics 2018-12-05 Yalong Cao , Martijn Kool

We compute the motivic Donaldson-Thomas theory of the resolved conifold, in all chambers of the space of stability conditions of the corresponding quiver. The answer is a product formula whose terms depend on the position of the stability…

Algebraic Geometry · Mathematics 2011-07-26 Andrew Morrison , Sergey Mozgovoy , Kentaro Nagao , Balazs Szendroi

We prove new adjunction inequalities for embedded surfaces in four-manifolds with non-negative self-intersection number by using the Donaldson invariants. These formulas are completely analogous to the ones obtained by Ozsv\'ath and Szab\'o…

Differential Geometry · Mathematics 2007-05-23 Vicente Muñoz

We introduce the notion of symmetric obstruction theory and study symmetric obstruction theories which are compatible with C*-actions. We prove that the contribution of an isolated fixed point under a C*-action to equivariant…

Algebraic Geometry · Mathematics 2007-05-23 Kai Behrend , Barbara Fantechi

Using the interpretation of certain generalised Donaldson-Thomas invariants, including stable pairs curve counts, as the monodromy of a flat connection on a formal principal bundle, we show that the conjectural Gopakumar-Vafa contributions…

Algebraic Geometry · Mathematics 2017-12-05 Jacopo Stoppa

We prove structure theorems for the Donaldson invariants of 4-manifolds with b_+=1, similar to those of Kronheimer and Mrowka in the case b_+>1: We show that for a 4-manifold with b_+=1 and two different period points F, G on the boundary…

alg-geom · Mathematics 2008-02-03 Lothar Göttsche , Don Zagier

We apply results on inducing stability conditions to local Calabi-Yau threefolds and obtain applications to Donaldson-Thomas (DT) theory. A basic example is the total space of the canonical bundle of $Z=\mathbb{P}^1\times \mathbb{P}^1$. We…

Algebraic Geometry · Mathematics 2024-12-12 Tom Bridgeland , Fabrizio Del Monte , Luca Giovenzana

We exploit the critical locus structure on the Quot scheme $\mathrm{Quot}_{\mathbb A^3}(\mathscr O^{\oplus r},n)$, in particular the associated symmetric obstruction theory, in order to define rank $r$ K-theoretic Donaldson-Thomas…

Algebraic Geometry · Mathematics 2021-07-01 Nadir Fasola , Sergej Monavari , Andrea T. Ricolfi

Let X be a Calabi-Yau 3-fold over C. The Donaldson-Thomas invariants of X are integers DT^a(t) which count stable sheaves with Chern character a on X, with respect to a Gieseker stability condition t. They are defined only for Chern…

Algebraic Geometry · Mathematics 2010-07-08 Dominic Joyce , Yinan Song

We relate Pandharipande-Thomas stable pair invariants on Calabi-Yau 3-folds containing the projective plane with those on the derived equivalent orbifolds via wall-crossing method. The difference is described by generalized Donaldson-Thomas…

Algebraic Geometry · Mathematics 2016-03-09 Yukinobu Toda

We investigate Gromov-Witten invariants associated to exceptional classes for primitive birational contractions on a Calabi-Yau threefold X. It was observed in a previous paper that these invariants are locally defined, in that they can be…

alg-geom · Mathematics 2008-02-03 P. M. H. Wilson

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