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Related papers: A Fourier-Mukai Transform For KR Theory

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We prove the following results for toric Deligne-Mumford stacks, under minimal compactness hypotheses: the Localization Theorem in equivariant K-theory; the equivariant Hirzebruch-Riemann-Roch theorem; the Fourier--Mukai transformation…

Algebraic Geometry · Mathematics 2018-08-02 Tom Coates , Hiroshi Iritani , Yunfeng Jiang , Ed Segal

We investigate the existence of whiskered tori in some dissipative systems, called \sl conformally symplectic \rm systems, having the property that they transform the symplectic form into a multiple of itself. We consider a family $f_\mu$…

Dynamical Systems · Mathematics 2019-01-25 Renato C. Calleja , Alessandra Celletti , Rafael de la Llave

We exhibit a transformation taking special Lagrangian submanifolds of a Calabi-Yau together with local systems to vector bundles over the mirror manifold with connections obeying deformed Hermitian-Yang-Mills equations. That is, the…

Differential Geometry · Mathematics 2007-05-23 Naichung Conan Leung , Shing-Tung Yau , Eric Zaslow

In this paper, we develop twisted $K$-theory for stacks, where the twisted class is given by an $S^1$-gerbe over the stack. General properties, including the Mayer-Vietoris property, Bott periodicity, and the product structure $K^i_\alpha…

K-Theory and Homology · Mathematics 2007-05-23 Jean-Louis Tu , Ping Xu , Camille Laurent-Gengoux

Let X be an abelian scheme over a scheme B. The Fourier--Mukai transform gives an equivalence between the derived category of X and the derived category of the dual abelian scheme. We partially extend this to certain schemes X over B (which…

Algebraic Geometry · Mathematics 2018-07-31 Dima Arinkin , Roman Fedorov

This article is based on a talk given at the Kinosaki Symposium on Algebraic Geometry in 2015, about a work in progress. We describe a polarization on a derived equivalent abelian variety by using Fourier-Mukai theory. We explicitly…

Algebraic Geometry · Mathematics 2015-12-08 Dulip Piyaratne

Let X and Y be K-equivalent toric Deligne-Mumford stacks related by a single toric wall-crossing. We prove the Crepant Transformation Conjecture in this case, fully-equivariantly and in genus zero. That is, we show that the equivariant…

Algebraic Geometry · Mathematics 2018-08-02 Tom Coates , Hiroshi Iritani , Yunfeng Jiang

We introduce the magnetic equivariant K-theory groups as the K-theory groups associated to magnetic groups and their respective magnetic equivariant complex bundles. We restrict the magnetic group to its subgroup of elements that act…

K-Theory and Homology · Mathematics 2025-03-11 Higinio Serrano , Bernardo Uribe , Miguel A. Xicoténcatl

In this paper we study continuous bundles of C*-algebras which are non-commutative analogues of principal torus bundles. We show that all such bundles, although in general being very far away from being locally trivial bundles, are at least…

K-Theory and Homology · Mathematics 2014-02-26 Siegfried Echterhoff , Ryszard Nest , Herve Oyono-Oyono

We prove a crepant transformation correspondence in genus zero Gromov-Witten theory for toric stack bundles related by crepant wall-crossings of the toric fibers. Specifically, we construct a symplectic transformation that identifies…

Algebraic Geometry · Mathematics 2026-01-13 Qian Chao , Jiun-Cheng Chen , Hsian-Hua Tseng

In this paper we prove that the linear Koszul duality isomorphism for convolution algebras in K-homology defined in a previous paper and the Fourier transform isomorphism for convolution algebras in Borel-Moore homology are related by the…

Representation Theory · Mathematics 2015-09-15 Ivan Mirkovic , Simon Riche

Given a polarized tropical affine torus, we show that the fibered Lagrangian cobordism group of the corresponding symplectic manifold admits a natural geometric filtration of finite length. This contrasts with results of Sheridan-Smith in…

Symplectic Geometry · Mathematics 2024-11-26 Álvaro Muñiz-Brea

In the present paper we describe the action of (not necessarily line) bundles of finite order on the $K$-functor in terms of classifying spaces. This description might provide with an approach for more general twistings in $K$-theory than…

K-Theory and Homology · Mathematics 2010-05-07 A. V. Ershov

We give a formula for the specialization of the Fourier-Mukai transform on a semi-abelian variety of torus rank 1.

Algebraic Geometry · Mathematics 2010-10-12 Gerard van der Geer , Alexis Kouvidakis

Let $X$ be a smooth projective variety. We study a relationship between the derived category of $X$ and that of a canonical divisor. As an application, we will study Fourier-Mukai transforms when $\kappa (X)=dim X-1$.

Algebraic Geometry · Mathematics 2007-05-23 Yukinobu Toda

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 show that the Fourier transform on the Jacobian of a curve interchanges "$\delta$ functions" at the curve and the theta divisor. The Torelli theorem is an immediate consequence.

Algebraic Geometry · Mathematics 2007-05-23 Alexander Beilinson , Alexander Polishchuk

This paper studies the action of the Fourier-Mukai transform on moduli spaces of vertical torsion sheaves on elliptic Calabi-Yau threefolds in Weierstrass form. Moduli stacks of semistable one dimensional sheaves on such threefolds are…

Algebraic Geometry · Mathematics 2015-10-14 Duiliu-Emanuel Diaconescu

A twist is a datum playing a role of a local system for topological $K$-theory. In equivariant setting, twists are classified into four types according to how they are realized geometrically. This paper lists the possible types of twists…

Algebraic Topology · Mathematics 2017-03-09 Kiyonori Gomi

We show that the topological T-duality for circle bundles introduced in work of Bouwknegt-Evslin-Mathai can be interpreted as a form of Atiyah duality for twisted K-theory.

Algebraic Topology · Mathematics 2015-03-03 Craig Westerland
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