Hülya Argüz, Pierrick Bousseau
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 more general flow tree formula reconstructing a consistent scattering diagram from its initial walls.
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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 corresponding Donaldson-Thomas invariants are encoded by a special formal automorphism of the cluster variety, known as Donaldson-Thomas transformation. Fix two integers $m$ and $n$ with $1<m<m+1<n$. It is known that the configuration space $\mathrm{Conf}_n(\mathbb{P}^{m-1})$, closely related to Grassmannian $\mathrm{Gr}_m(n)$, is a cluster Poisson variety. In this pap…
The aim of the paper is to provide a rather gentle introduction into Donaldson-Thomas theory using quivers with potential. The reader should be familiar with some basic knowledge in algebraic or complex geometry. The text contains many examples and exercises to support the process of understanding the main concepts and ideas.
Kontsevich and Soibelman defined the Donaldson-Thomas invariants of a 3d Calabi-Yau category with a stability condition. Any cluster variety can produce an example of such a category, whose corresponding Donaldson-Thomas invariants are encoded by a special formal automorphism of the cluster variety, known as the Donaldson-Thomas transformation. In this paper we prove a conjecture of Goncharov and Shen in the case of $\mathrm{GL}_n$, which describes the Donaldson-Thomas transformation of the double quotient of the double Bruhat cells $H \backslash \mathrm{GL}_n^{u,v}/H$ where $H$ is a maximal t…
Motivic Donaldson-Thomas invariants and McKay correspondence
设$G\subset SL_2(C)\subset SL_3(C)$是一个有限群.我们计算了$C^3/G$的crepant分辨率$Hilb^G(C^3)$的motivic Pandharipande-Thomas和Donaldson-Thomas不变量，推广了Gholampour和Jiang使用局部化技术计算数值DT/PT不变量的结果。我们的公式依赖于计算motivic唐纳森-托马斯不变量的一类特殊的箭与潜力。我们表明，这些motivic Donaldson-Thomas不变量是密切相关的多项式计数绝对不可分解的表示在有限域的Kac。我们制定了一个猜想的积极性唐纳森-托马斯不变量的广泛类颤抖的潜力。这个猜想，如果真的，意味着卡茨积极性猜想任意颤动。
Double Bruhat cells $G^{u,v}$ were studied by Fomin and Zelevinsky. They provide important examples of cluster algebras and cluster Poisson varieties. Cluster varieties produce examples of 3d Calabi-Yau categories with stability conditions, and their Donaldson-Thomas invariants, defined by Kontsevich and Soibelman, are encoded by a formal automorphism on the cluster variety known as the Donaldson-Thomas transformation. Goncharov and Shen conjectured in that for any semisimple Lie group $G$, the Donaldson-Thomas transformation of the cluster Poisson variety $H\backslash G^{u,v}/H$ is a slight m…
We establish a geometric interpretation of orientifold Donaldson-Thomas invariants of $σ$-symmetric quivers with involution. More precisely, we prove that the cohomological orientifold Donaldson-Thomas invariant is isomorphic to the rational Chow group of the moduli space of $σ$-stable self-dual quiver representations. As an application we prove that the Chow Betti numbers of moduli spaces of stable $m$-tuples in classical Lie algebras can be computed numerically. We also prove a cohomological wall-crossing formula relating semistable Hall modules for different stabilities.
Degenerate Cohomological Hall algebra and quantized Donaldson-Thomas invariants for m-loop quivers
我们推导出一个组合公式的量子化唐纳森-托马斯不变量的m-循环的。我们的主要工具是组合的非交换希尔伯特计划和退化版本的上同调霍尔代数的这一点。
Donaldson-Thomas invariants of symmetric quivers
回顾对称箭图的动机唐纳森 - 托马斯不变量的代数、组合和几何解释
Motivic Donaldson-Thomas invariants and Kac conjecture
本文从对称箭图的Donaldson-Thomas不变量的正性导出了一些组合结果，这些不变量是由Kontsevich和Soibelman提出并由Efimov证明的。这些结果被用来证明Kac猜想的箭图至少有一个回路在每个顶点。
We compute motivic Donaldson-Thomas invariants for crepant resolutions of quotients of affine three-space by even dihedral groups in terms of an affine type D root system, using double dimensional reduction and the representation theory of affine type D quivers.
On the motivic Donaldson-Thomas invariants of quivers with potentials
我们研究motivic唐纳森-托马斯不变量的一类颤抖的潜力使用的战略Behrend，布赖恩，和Szendroi。这一类包括由相容膜镶嵌产生的具有势的箭图和具有零势的箭图。我们的构造是Kontsevich和Soibelman构造的一种替代。我们构造了一个从等变Hall代数到量子环面的积分映射，并证明了我们的原动机Donaldson-Thomas不变量是等变Hall代数中自然元素的像.我们证明了积分映射是一个代数同态，并利用这一事实证明了运动Donaldson-Thomas不变量的Harder-Narasimhan关系。
Cohomology of quiver moduli, functional equations, and integrality of Donaldson-Thomas type invariants
导出了一组函数方程，它将箭图稳定表示的模空间的欧拉示性数与箭图模的（Hilbert格式型）框架形式的欧拉示性数联系起来。这适用于M的Donaldson-Thomas型不变量的跨壁公式。Kontsevich和Y. Soibelman，特别是确认其完整性。
We introduce a new class of representations of the cohomological Hall algebras of Kontsevich and Soibelman, which we call cohomological Hall modules, or CoHM for short. These representations are constructed from self-dual representations of a quiver with contravariant involution $σ$ and provide a mathematical model for the space of BPS states in orientifold string theory. We use the CoHM to define a generalization of the cohomological Donaldson-Thomas theory of quivers which allows the quiver representations to have orthogonal and symplectic structure groups. The associated invariants are call…
Donaldson-Thomas theory and cluster algebras
给出了突变复合下非交换Donaldson-Thomas不变量的变换公式。因此，我们得到了一个组合的集群变换的描述，在Grassmannian。作为应用，我们给出了Fomin-Zelevinsky关于$F$ -多项式和$g$ -向量的猜想的另一种证明。
The main result of this paper is the statement that the Hodge theoretic Donaldson-Thomas invariant for a quiver with zero potential and a generic stability condition agrees with the compactly supported intersection cohomology of the closure of the stable locus inside the associated coarse moduli space of semistable quiver representations. In fact, we prove an even stronger result relating the Donaldson-Thomas "function" to the intersection complex. The proof of our main result relies on a relative version of the integrality conjecture in Donaldson-Thomas theory. This will be the topic of the s…
Self-dual quiver moduli and orientifold Donaldson-Thomas invariants
受弦理论中BPS态计数的启发，我们研究了具有反变对合的弦的自对偶表示的模空间。我们发展了Hall模技术来计算半稳定自对偶表示的模栈的有限域上的点数。与这些计数不同的稳定性参数的选择相关的跨壁公式恢复了物理学文献中预测的orientifold BPS/Donaldson-Thomas不变量的跨壁。在有限型的例子中，越壁公式可以根据作用在量子环面表示中的量子微分方程的恒等式重新表述。
The aim of the paper is twofold. Firstly, we give an axiomatic presentation of Donaldson-Thomas theory for categories of homological dimension at most one with potential. In particular, we provide rigorous proofs of all standard results concerning the integration map, wall-crossing, PT-DT correspondence, etc. following Kontsevich and Soibelman. We also show the equivalence of their approach and the one given by Joyce and Song. Secondly, we relate Donaldson-Thomas functions for such a category with arbitrary potential to those with zero potential under some mild conditions. As a result of this,…
Tilting and Refined Donaldson-Thomas Invariants
本文研究了Ginzburg代数有限维导出范畴的标准t-结构的心A对位势为（Q，W）的代数的倾斜性.本文给出了A上中心电荷的稳定对象定义从A到A[-1]的简单倾斜序列的条件。在这种条件下，与（Q，W）相关的改进的Donaldson-Thomas不变量与所选择的中心电荷无关。
Donaldson-Thomas invariants vs. intersection cohomology for categories of homological dimension one
本文件是一个扩展以前的文件写的合作与马库斯Reineke处理的表示。本文的目的是推广Donaldson-Thomas不变量理论，为满足某些技术条件的同调维数为1（无位势）的阿贝尔范畴提供一个全面的Donaldson-Thomas不变量理论.该理论将适用于例如表示箭图，连贯层光滑射影曲线，和一些连贯层光滑射影曲面。我们证明了Donaldson-Thomas不变量满足积分猜想，并证明了Hodge理论版本与相应对象的模空间的（紧支撑的）交上同调.事实上，我们处理的唐纳森-托马斯不变量，可以解释为类的Grothendieck群的一些“层”上的模空间的一个改进版本。特别地，我们利用Donaldson-Thomas理论再现了模空间的交复形。
On the noncommutative Donaldson-Thomas invariants arising from brane tilings
给定一个膜平铺，即环面上的一个二部图，我们可以将它与一个二分势和一个二分势代数联系起来。在一定的一致性条件下，证明了相应的位势代数上框架循环模模空间的Donaldson-Thomas型不变量的一个公式.我们将这个公式与计数的完美匹配的周期平面平铺对应的膜平铺。我们证明了相同的相容性条件意味着该位势代数是一个3-Calabi-Yau代数。我们还制定了合理性猜想的唐纳森-托马斯型不变量的生成函数。
We prove a family of factorization formulas for the combinatorial Donaldson--Thomas invariant for an acyclic quiver. A quantum dilogarithm identity due to Reineke, later interpreted by Rimanyi by counting codimensions of quiver loci, gives two extremal cases of our formulation in the Dynkin case. We establish our interpolating factorizations explicitly with a dimension counting argument by defining certain stratifications of the space of representations for the quiver and calculating Betti numbers in the corresponding equivariant cohomology algebras.
The semi-stable ChowHa of a quiver with stability is defined as an analog of the Cohomological Hall algebra of Kontsevich and Soibelman via convolution in equivariant Chow groups of semi-stable loci in representation varieties of quivers. We prove several structural results on the semi-stable ChowHa, namely isomorphism of the cycle map, a tensor product decomposition, and a tautological presentation. For symmetric quivers, this leads to an identification of their quantized Donaldson-Thomas invariants with the Chow-Betti numbers of moduli spaces.
Donaldson-Thomas theory of A_n x P^1
本文研究了A_n × P^1的相对Donaldson-Thomas理论，其中A_n是A_n型奇点的曲面分解.该理论中因子算子的作用用Fock空间上仿射代数\hat{gl}（n+1）的算子表示。假设一个非简并猜想，这给出了一个完整的解决方案的理论。结果完成了该理论与A_n × P^1的Gromov-Witten理论和A_n上的Hilbert点系的量子上同调的比较。
We discuss semicanonical bases from the point of view of Cohomological Hall algebras via the "dimensional reduction" from 3-dimensional Calabi-Yau categories to 2-dimensional ones. Also, we discuss the notion of motivic Donaldson-Thomas invariants (as defined by M. Kontsevich and Y. Soibelman) in the framework of 2-dimensional Calabi-Yau categories. In particular we propose a conjecture which allows one to define Kac polynomials for a 2-dimensional Calabi-Yau category (this is a theorem of S. Mozgovoy in the case of preprojective algebras).
We develop theoretical aspects of refined Donaldson-Thomas theory for threefold flops, and use these to determine all DT invariants for a doubly infinite family of length 2 flopping contractions. Our results show that a refined version of the strong-rationality conjecture of Pandharipande-Thomas holds in this setting, and also that refined DT invariants do not classify flops. Our main innovation is the application of tilting theory to better understand the stability conditions and cyclic A-infinity-deformation theory of these spaces. Where possible we work in the motivic setting, but we also c…
Generating functions for colored 3D Young diagrams and the Donaldson-Thomas invariants of orbifolds
我们推导出两个多元生成函数的三维杨氏图（也称为平面分区）。变量对应于根据SO（3）的有限阿贝尔子群G的盒子的着色。我们使用Okounkov-Reshetikhin-Vafa的顶点算子方法为简单的情况G = Z/n;处理相当困难的情况G=Z/2 x Z/2，我们还将使用作者最近的q-枚举金字塔分区的改进。在附录中，我们将图母函数与轨道C^3/G的Donaldson-Thomas分拆函数联系起来。我们发现了轨道的Donaldson-Thomas分拆函数和它的G-Hilbert方案分辨率之间的关系。本文对满足Hard Lefschetz条件的Donaldson-Thomas定域轨道理论提出了一个可信的归结猜想。
In this paper we find and explore the correspondence between quivers, torus knots, and combinatorics of counting paths. Our first result pertains to quiver representation theory -- we find explicit formulae for classical generating functions and Donaldson-Thomas invariants of an arbitrary symmetric quiver. We then focus on quivers corresponding to $(r,s)$ torus knots and show that their classical generating functions, in the extremal limit and framing $rs$, are generating functions of lattice paths under the line of the slope $r/s$. Generating functions of such paths satisfy extremal A-polynom…
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 to test the conjectural exponential expressions for these invariants, proposed in arXiv:1510.08116. As an example we confirm the second term of the conjectured expression for the motivic series of the homogenised Weyl algebra.
Gauge origami and quiver W-algebras III: Donaldson--Thomas $qq$-characters
本研究推进BPS/CFT对应，提出带非平凡边界条件的Donaldson--Thomas $qq$-特征标，重新推导无边界D8 $qq$-特征标的配分函数符号规则，证明无边界D6、D8 $qq$-特征标对易并讨论物理意义。
Donaldson-Thomas invariants for the Bridgeland-Smith correspondence
本文针对 Bridgeland-Smith 对应中二次微分轨迹相关的 Donaldson-Thomas 不变量，验证 Christ-Haiden-Qiu 范畴的不变量与物理预测一致，还给出表示论弦带技术的新应用。
We study the action of $S_n$ on the set of break divisors on complete multigraphs $K_{n}^m$. We provide an alternative characterization for these divisors, by virtue of which we show that orbits of this action are enumerated by the numerical Donaldson-Thomas invariants of $(m+1)$-loop quivers. Our characterization also allows us to restrict this action to $S_{n-1}$ and we identify the resulting $S_{n-1}$-module as that afforded by $K_n^m$-parking functions.
Cohomological Donaldson-Thomas theory for local systems on the $3$-torus
本文研究三维环面上局部系统的上同调 Donaldson-Thomas 理论，利用指数映射证明了 $\mathrm{GL}_n$、$\mathrm{SL}_n$ 和 $\mathrm{PGL}_n$ 的上同调整性，并给出了素数情形下的朗兰兹对偶性陈述。
We introduce and study a fermionization procedure for the cohomological Hall algebra $\mathcal{H}_{Π_Q}$ of representations of a preprojective algebra, that selectively switches the cohomological parity of the BPS Lie algebra from even to odd. We do so by determining the cohomological Donaldson--Thomas invariants of central extensions of preprojective algebras studied in the work of Etingof and Rains, via deformed dimensional reduction. Via the same techniques, we determine the Borel-Moore homology of the stack of representations of the $μ$-deformed preprojective algebra introduced by Crawley-…
Quiver diagonalization and open BPS states
证明对称箭图的动机Donaldson-Thomas不变量可编码为仅含环的无限大箭图，推广了开BPS态不变量整性的证明，并将任意对称箭图不变量用$m$-环箭图不变量表达。
We apply the method of orbit harmonics to the set of break divisors and orientable divisors on graphs to obtain the central and external zonotopal algebras respectively. We then relate a construction of Efimov in the context of cohomological Hall algebras to the central zonotopal algebra of a graph $G_{Q,γ}$ constructed from a symmetric quiver $Q$ with enough loops and a dimension vector $γ$. This provides a concrete combinatorial perspective on the former work, allowing us to identify the quantum Donaldson-Thomas invariants as the Hilbert series of the space of $S_γ$-invariants of the Postnik…
Hyperbolic localization in Donaldson-Thomas theory
本文证明了上同调Donaldson-Thomas理论中的环面局部化公式，将DT反常层在吸引簇上的限制表示为固定分量上的上同调移位之和，并借此推导了穿墙公式与上同调霍尔代数等基础构造。
For a given symmetric quiver $Q$, we define a supercommutative quadratic algebra $\mathcal{A}_Q$ whose Poincaré series is related to the motivic generating function of $Q$ by a simple change of variables. The Koszul duality between supercommutative algebras and Lie superalgebras assigns to the algebra $\mathcal{A}_Q$ its Koszul dual Lie superalgebra $\mathfrak{g}_Q$. We prove that the motivic Donaldson-Thomas invariants of the quiver $Q$ may be computed using the Poincaré series of a certain Lie subalgebra of $\mathfrak{g}_Q$ that can be described, using an action of the first Weyl algebra on …
Gluing invariants of Donaldson--Thomas type -- Part I: the Darboux stack
本文引入(-1)-平移辛导出Deligne–Mumford栈的Darboux栈，证明其经同伦商后的可缩性，重证消失周期粘合结果，并将用于后续动机矩阵分解范畴的粘合以回应相关猜想。
This paper concerns the cohomological aspects of Donaldson-Thomas theory for Jacobi algebras and the associated cohomological Hall algebra, introduced by Kontsevich and Soibelman. We prove the Hodge-theoretic categorification of the integrality conjecture and the wall crossing formula, and furthermore realise the isomorphism in both of these theorems as Poincaré-Birkhoff-Witt isomorphisms for the associated cohomological Hall algebra. We do this by defining a perverse filtration on the cohomological Hall algebra, a result of the "hidden properness" of the semisimplification map from the moduli…
Intrinsic Donaldson-Thomas theory. I. Component lattices of stacks
本文提出内蕴Donaldson-Thomas理论框架，引入代数栈的分量格，证明常值、有限性和结合性定理，将枚举不变量从线性栈推广到非线性栈。
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 diagrams in terms of stabilitiy conditions, plus a new version of the description of scattering diagrams in terms of tropical disk counts. The weights with which the tropical disks are counted are expressed in terms of motivic integrals of certain quiver flag varieties. We also show via explicit counterexample that Hall algebra broken lines do not result in…
We prove that the generating functions for the colored HOMFLY-PT polynomials of rational links are specializations of the generating functions of the motivic Donaldson-Thomas invariants of appropriate quivers that we naturally associate with these links. This shows that the conjectural links-quivers correspondence of Kucharski-Reineke-Stošić-Sułkowski as well as the LMOV conjecture hold for rational links. Along the way, we extend the links-quivers correspondence to tangles and, thus, explore elements of a skein theory for motivic Donaldson-Thomas invariants.
Demazure weaves for reduced plabic graphs (with a proof that Muller-Speyer twist is Donaldson-Thomas)
本文发展编织理论以构造正电子簇变体的簇结构，并证明Muller-Speyer扭转是Donaldson-Thomas变换，从而表明其为拟簇自同构。
Gluing invariants of Donaldson--Thomas type -- Part II: Matrix factorizations
本文作为系列工作第二部分，研究(-1)平移辛导出Deligne–Mumford叠上局部矩阵分解dg-范畴的粘合，证明其可在三个阻碍类控制的定向数据下粘合成2-周期dg-范畴的晶体层，推广了已有结果并部分回应了相关猜想。
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