English
Related papers

Related papers: Cohomological DT invariants from localization

200 papers

Famous work of Bridgeland and Smith shows that certain moduli spaces of quadratic differentials are isomorphic to spaces of stability conditions on particular 3-Calabi-Yau triangulated categories. This result has subsequently been…

Algebraic Geometry · Mathematics 2024-06-26 Omar Kidwai , Nicholas J. Williams

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

After Bershadsky-Cecotti-Ooguri-Vafa, we introduce an invariant of Calabi-Yau threefolds, which we call the BCOV invariant and which we obtain using analytic torsion. We give an explicit formula for the BCOV invariant as a function on the…

Differential Geometry · Mathematics 2008-10-31 Hao Fang , Zhiqin Lu , Ken-Ichi Yoshikawa

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

We introduce the notion of almost perfect obstruction theory on a Deligne-Mumford stack and show that stacks with almost perfect obstruction theories have virtual structure sheaves which are deformation invariant. The main components in the…

Algebraic Geometry · Mathematics 2019-12-12 Young-Hoon Kiem , Michail Savvas

Kontsevich and Soibelman defined the notion of Donaldson-Thomas invariants of a 3d Calabi-Yau category with a stability condition. A family of examples of such categories can be constructed from an arbitrary cluster variety. The…

Representation Theory · Mathematics 2019-04-18 Daping Weng

We define a new type of Hall algebras associated e.g. with quivers with polynomial potentials. The main difference with the conventional definition is that we use cohomology of the stack of representations instead of constructible sheaves…

Algebraic Geometry · Mathematics 2011-07-12 Maxim Kontsevich , Yan Soibelman

The wall-crossing formula for Donaldson invariants of smooth, simply connected four manifolds with $b^+=1$ is shown to be a topological invariant of the manifold for reducible connections with two or fewer singular points. The explicit…

dg-ga · Mathematics 2008-02-03 Thomas Leness

We explore BPS quivers for D=5 theories, compactified on a circle and geometrically engineered over local Calabi-Yau 3-folds, for which many of known machineries leading to (refined) indices fail due to the fine-tuning of the…

High Energy Physics - Theory · Physics 2021-03-17 Zhihao Duan , Dongwook Ghim , Piljin Yi

We prove a comparison formula for curve-counting invariants in the setting of the McKay correspondence, related to the crepant resolution conjecture for Donaldson-Thomas invariants. The conjecture is concerned with comparing the invariants…

Algebraic Geometry · Mathematics 2014-12-16 John Calabrese

Let $C$ be a smooth curve embedded in a smooth quasi-projective threefold $Y$, and let $Q^n_C=\textrm{Quot}_n(\mathscr I_C)$ be the Quot scheme of length $n$ quotients of its ideal sheaf. We show the identity…

Algebraic Geometry · Mathematics 2017-04-07 Andrea T. Ricolfi

This is a survey of the book arXiv:0810.5645 with Yinan Song. 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…

Algebraic Geometry · Mathematics 2010-05-20 Dominic Joyce

We compute Gromov-Witten (GW) and Donaldson-Thomas (DT) invariants (and also descendant invariants) for local CY 4-folds over Fano 3-folds, V_5 and V_22 up to degree 3. We use torus localization for GW invariants computation, and use…

Algebraic Geometry · Mathematics 2021-09-07 Kiryong Chung , Sanghyeon Lee , Joonyeong Won

The notion of a d-critical locus is an ingredient in the definition of motivic Donaldson-Thomas invariants by [BJM19]. In this paper we show that there is a d-critical locus structure on the Hilbert scheme of dimension zero subschemes on…

Algebraic Geometry · Mathematics 2024-09-30 Sheldon Katz , Yun Shi

The aim of this paper is to solve a uniform version of the Yau-Tian-Donaldson conjecture for polarized toric manifolds. Also, we show a combinatorial sufficient condition for uniform relative K-polystability.

Differential Geometry · Mathematics 2021-10-25 Yasufumi Nitta , Shunsuke Saito

We prove the motivic version of the DT/PT-correspondence in \cite{PT} and the motivic flop formula of the curve counting invariants in the derived category of smooth Calabi-Yau threefold DM stacks. The main method we use is Bridgeland's…

Algebraic Geometry · Mathematics 2019-01-08 Yunfeng Jiang

We derive a combinatorial formula for quantized Donaldson-Thomas invariants of the m-loop quiver. Our main tools are the combinatorics of noncommutative Hilbert schemes and a degenerate version of the Cohomological Hall algebra of this…

Representation Theory · Mathematics 2011-02-22 Markus Reineke

Gromov-Witten, Gopakumar-Vafa, and Donaldson-Thomas invariants of Calabi-Yau threefolds are compared. In certain situations, the Donaldson-Thomas invariants are very easy to handle, sometimes easier than the other invariants. This point is…

Algebraic Geometry · Mathematics 2007-05-23 Sheldon Katz

Recently, Oh and Thomas constructed algebraic virtual cycles for moduli spaces of sheaves on Calabi-Yau 4-folds. The purpose of this paper is to provide a virtual pullback formula between these Oh-Thomas virtual cycles. We find a natural…

Algebraic Geometry · Mathematics 2021-10-08 Hyeonjun Park

We prove that the quantum DT invariants associated to quivers with genteel potential can be expressed in terms of certain refined counts of tropical disks. This is based on a quantum version of Bridgeland's description of cluster scattering…

Algebraic Geometry · Mathematics 2020-07-30 Man-Wai Cheung , Travis Mandel
‹ Prev 1 4 5 6 7 8 10 Next ›