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A coherent system of type (r,d,k) on a curve C is a pair (E,V) where E is a vector bundle of rank r and degree d and V is a space of sections of E of dimension k. There is a condition of stability on coherent systems that depends on a…

Algebraic Geometry · Mathematics 2007-05-23 Montserrat Teixidor i Bigas

In this paper we consider coherent systems $(E,V)$ on an elliptic curve which are stable with respect to some value of a parameter $\alpha$. We show that the corresponding moduli spaces, if non-empty, are smooth and irreducible of the…

Algebraic Geometry · Mathematics 2007-05-23 H. Lange , P. E. Newstead

We study the interplay between the Fourier-Mukai transform and the decomposition theorem for an integrable system $\pi: M \rightarrow B$. Our main conjecture is that the Fourier-Mukai transform of sheaves of K\"ahler differentials, after…

Algebraic Geometry · Mathematics 2023-01-18 Davesh Maulik , Junliang Shen , Qizheng Yin

We shall study stability conditions and Fourier-Mukai transforms on an elliptic surface. In particular we shall explain duality of elliptic surfaces by Fourier-Mukai transforms.

Algebraic Geometry · Mathematics 2022-11-17 Kota Yoshioka

We construct stable sheaves over K3 fibrations using a relative Fourier-Mukai transform which describes the sheaves in terms of spectral data similar to the construction for elliptic fibrations. On K3 fibered Calabi-Yau threefolds we show…

Algebraic Geometry · Mathematics 2008-11-25 Bjorn Andreas , Daniel Hernandez Ruiperez , Dario Sanchez Gomez

We systematically develop a transform of the Fourier-Mukai type for sheaves on symplectic manifolds $X$ of any dimension fibred in Lagrangian tori. One obtains a bijective correspondence between unitary local systems supported on Lagrangian…

Differential Geometry · Mathematics 2015-06-26 U. Bruzzo , G. Marelli , F. Pioli

We characterize the subscheme of the moduli space of torsion-free sheaves on an elliptic surface which are stable of relative degree zeero (with respect to a polarization of type aH+bf, H being the section and f the elliptic fibre) which is…

Algebraic Geometry · Mathematics 2015-06-26 D. Hernandez Ruiperez , J. M. Munoz Porras

Let $C$ be a curve of genus $g\geq 2$. A coherent system on $C$ consists of a pair $(E,V)$ where $E$ is an algebraic vector bundle of rank $n$ and degree $d$ and $V$ is a subspace of dimension $k$ of sections of $E$. The stability of the…

Algebraic Geometry · Mathematics 2007-05-23 Steven Bradlow , Oscar Garcia-Prada , Vicente Muñoz , Peter Newstead

Let $C$ be an algebraic curve of genus $g\ge2$. A coherent system on $C$ consists of a pair $(E,V)$, where $E$ is an algebraic vector bundle over $C$ of rank $n$ and degree $d$ and $V$ is a subspace of dimension $k$ of the space of sections…

Algebraic Geometry · Mathematics 2007-12-10 S. B. Bradlow , O. Garcia-Prada , V. Mercat , V. Munoz , P. E. Newstead

We study Fourier-Mukai transforms for smooth projective varieties whose canonical bundles have finite order, and relate them to equivariant transforms on certain finite covering spaces. Our results lead to new equivalences of derived…

Algebraic Geometry · Mathematics 2007-05-23 Tom Bridgeland , Antony Maciocia

Given a non-singular variety with a K3 fibration f : X --> S we construct dual fibrations Y --> S by replacing each fibre X_s of f by a two-dimensional moduli space of stable sheaves on X_s. In certain cases we prove that the resulting…

Algebraic Geometry · Mathematics 2019-12-24 Tom Bridgeland , Antony Maciocia

We show that the Fourier-Mukai transfortm on an abelian surface induces a birational map of the moduli space of stablke sheaves.

Algebraic Geometry · Mathematics 2007-05-23 Kota Yoshioka

We systematically develop Bridgeland's and Bridgeland-Maciocia's techniques for studying elliptic fibrations, and identify criteria that ensure 2-term complexes are mapped to torsion-free sheaves under a Fourier-Mukai transform. As an…

Algebraic Geometry · Mathematics 2014-01-20 Jason Lo

Let $S$ be an irreducible smooth projective surface defined over an algebraically closed field $k$. For a positive integer $d$, let ${\rm Hilb}^d(S)$ be the Hilbert scheme parametrizing the zero-dimensional subschemes of $S$ of length $d$.…

Algebraic Geometry · Mathematics 2016-05-23 Indranil Biswas , D. S. Nagaraj

We study perverse coherent sheaves on the resolution of rational double points. As examples, we consider rational double points on 2-dimensional moduli spaces of stable sheaves on K3 and elliptic surfaces. Then we show that perverse…

Algebraic Geometry · Mathematics 2015-03-13 Kota Yoshioka

We give an introductory review of Fourier-Mukai transforms and their application to various aspects of moduli problems, string theory and mirror symmetry. We develop the necessary mathematical background for Fourier-Mukai transforms such as…

Algebraic Geometry · Mathematics 2007-05-23 Bjorn Andreas , Daniel Hernandez Ruiperez

In this paper, we describe the spaces of stability conditions on the triangulated categories associated to three dimensional crepant small resolutions. The resulting spaces have chamber structures such that each chamber corresponds to a…

Algebraic Geometry · Mathematics 2007-05-23 Yukinobu Toda

This is a note in which we first review symmetries of moduli spaces of stable meromorphic connections on trivial vector bundles over the Riemann sphere, and next discuss symmetries of their integrable deformations as an application. In the…

Classical Analysis and ODEs · Mathematics 2018-03-16 Kazuki Hiroe

It is shown that certain transformations on quiver-dimension vector pairs induce isomorphisms on the corresponding moduli spaces of quiver representations and map a stable dimension vector to a stable dimension vector. This result combined…

Representation Theory · Mathematics 2023-12-27 M. Domokos

We study relatively semi-stable vector bundles and their moduli on non-K\"ahler principal elliptic bundles over compact complex manifolds of arbitrary dimension. The main technical tools used are the twisted Fourier-Mukai transform and a…

Complex Variables · Mathematics 2013-10-02 Vasile Brinzanescu , Andrei D. Halanay , Günther Trautmann