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In this paper we consider the iterated G-equivariant Hilbert scheme G/N-Hilb(N-Hilb) and prove that G/N-Hilb(N-Hilb(C^3)) is a crepant resolution of C^3/G isomorphic to the moduli space of \theta-stable representations of the McKay quiver…

Algebraic Geometry · Mathematics 2015-01-14 Akira Ishii , Yukari Ito , Álvaro Nolla de Celis

Due to a theorem by Orlov every exact fully faithful functor between the bounded derived categories of coherent sheaves on smooth projective varieties is of Fourier-Mukai type. We extend this result to the case of bounded derived categories…

Algebraic Geometry · Mathematics 2007-05-23 Alberto Canonaco , Paolo Stellari

We globalize the derived version of the McKay correspondence of Bridgeland-King-Reid, proven by Kawamata in the case of abelian quotient singularities, to certain log algebraic stacks with locally free log structure. The two sides of the…

Algebraic Geometry · Mathematics 2019-02-20 Sarah Scherotzke , Nicolò Sibilla , Mattia Talpo

Our goal in this paper is to discuss a conjectural correspondence between enumerative geometry of curves in Calabi-Yau 5-folds $Z$ and 1-dimensional sheaves on 3-folds $X$ that are embedded in $Z$ as fixed points of certain…

Algebraic Geometry · Mathematics 2014-04-10 Nikita Nekrasov , Andrei Okounkov

We formulate and prove the Remodeling Conjecture with descendants, which is a version of all-genus equivariant descendant mirror symmetry for semi-projective toric Calabi-Yau 3-orbifolds with integral structures. We construct an isomorphism…

Algebraic Geometry · Mathematics 2025-12-25 Bohan Fang , Chiu-Chu Melissa Liu , Song Yu , Zhengyu Zong

We extend the dimension and strong linearity results of generic vanishing theory to bundles of holomorphic forms and rank one local systems, and more generally to certain coherent sheaves of Hodge-theoretic origin associated to irregular…

Algebraic Geometry · Mathematics 2012-01-20 Mihnea Popa , Christian Schnell

We use the extended Mukai vectors for hyper-K\"ahler manifolds to investigate the derived equivalences of the hyper-K\"ahler manifolds which are deformation equivalent to generalized Kummer varieties. Inspired by the idea for hyper-K\"ahler…

Algebraic Geometry · Mathematics 2025-10-21 Yuxuan Yang

We describe the derived category of coherent sheaves on the minimal resolution of the Kleinian singularity associated to a finite subgroup G of SL(2). Then, we give an application to the Euler-characteristic version of the Hall algebra of…

Algebraic Geometry · Mathematics 2007-05-23 M. Kapranov , E. Vasserot

To every singular reduced projective curve X one can associate, following E. Esteves, many fine compactified Jacobians, depending on the choice of a polarization on X, each of which yields a modular compactification of a disjoint union of…

Algebraic Geometry · Mathematics 2023-01-18 Margarida Melo , Antonio Rapagnetta , Filippo Viviani

Given a pair of derived-equivalent Calabi--Yau manifolds of dimension more than two, we prove that the derived equivalence can be extended to general fibers of versal deformations. As an application, we give a new proof of the…

Algebraic Geometry · Mathematics 2022-03-10 Hayato Morimura

The Pfaffian-Grassmannian correspondence relates certain pairs of derived equivalent non-birational Calabi-Yau 3-folds. Given such a pair, I construct a set of derived equivalences corresponding to mutations of an exceptional collection on…

Algebraic Geometry · Mathematics 2021-03-25 Will Donovan

By a local geometric Langlands correspondence for a complex reductive group G we understand a construction which assigns to a local system on the punctured disc for the Langlands dual group of G, a category equipped with an action of the…

Representation Theory · Mathematics 2007-05-23 Edward Frenkel , Dennis Gaitsgory

The classical Riemann-Hilbert correspondence establishes an equivalence between the triangulated category of regular holonomic D-modules and that of constructible sheaves. In this paper, we prove a Riemann-Hilbert correspondence for…

Algebraic Geometry · Mathematics 2019-07-25 Andrea D'Agnolo , Masaki Kashiwara

Let $\Gamma$ be a finite group acting linearly on $\C^n$, freely outside the origin. In previous work a generalisation of Kronheimer's construction of moduli of Hermitian-Yang-Mills bundles with certain invariance properties was given. This…

alg-geom · Mathematics 2008-02-03 Alexander V Sardo-Infirri

We formulate and prove a Riemann-Hilbert correspondence between $\hbar$-differential equations and sheaf quantizations, which can be considered as a correspondence between two kinds of quantizations (deformation and sheaf quantization) of…

Symplectic Geometry · Mathematics 2022-02-10 Tatsuki Kuwagaki

We give a dual to the McKay correspondence, involving conjugacy classes of subgroups of SU(2). We prove a determinantal formula involving both correspondences. We pose some questions concerning a non-commutative Fourier transform.

alg-geom · Mathematics 2008-02-03 Jean-Luc Brylinski

Let g be a complex reductive Lie algebra with Cartan algebra h. Hotta and Kashiwara defined a holonomic D-module M, on g x h, called Harish-Chandra module. We relate gr(M), an associated graded module with respect to a canonical Hodge…

Algebraic Geometry · Mathematics 2019-12-19 Victor Ginzburg

Let $G$ and $\check{G}$ be Langlands dual connected reductive groups. We establish a monoidal equivalence of $\infty$-categories between equivariant quasicoherent sheaves on the formal neighborhood of the nilpotent cone in $G$ and…

Representation Theory · Mathematics 2023-10-17 Harrison Chen , Gurbir Dhillon

We construct five families of two-dimensional moduli spaces of parabolic Higgs bundles (respectively local systems) by taking the equivariant Hilbert scheme of a certain finite group acting on the cotangent bundle of an elliptic curve. We…

Algebraic Geometry · Mathematics 2012-06-26 Michael Groechenig

Every Fourier--Mukai equivalence between the derived categories of two K3 surfaces induces a Hodge isometry of their cohomologies viewed as Hodge structures of weight two endowed with the Mukai pairing. We prove that this Hodge isometry…

Algebraic Geometry · Mathematics 2019-12-19 Daniel Huybrechts , Emanuele Macri , Paolo Stellari
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