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We show that every exact fully faithful functor from the category of perfect complexes on the spectrum of dual numbers to the bounded derived category of a noetherian separated scheme is of Fourier-Mukai type. The kernel turns out to be an…

Algebraic Geometry · Mathematics 2015-05-19 Francesco Amodeo , Riccardo Moschetti

In this paper, we describe the Fourier-Mukai locus of the derived category of a complex algebraic K3 surface of Picard number one. We also prove that the Fourier-Mukai locus of the derived category of a complex algebraic K3 surface of…

Algebraic Geometry · Mathematics 2024-05-03 Yuki Hirano , Genki Ouchi

In this paper we study the local magnetic ray transform of symmetric tensor fields up to rank two on a Riemannian manifold of dimension $\geq 3$ with boundary. In particular, we consider the magnetic ray transform of the combinations of…

Differential Geometry · Mathematics 2016-09-14 Hanming Zhou

We give a proof of Mukai's Theorem on the existence of certain exceptional vector bundles on prime Fano threefolds. To our knowledge this is the first complete proof in the literature. The result is essential for Mukai's biregular…

Algebraic Geometry · Mathematics 2025-09-26 Arend Bayer , Alexander Kuznetsov , Emanuele Macrì

We complete the classification of rank two affine manifolds in the moduli space of translation surfaces in genus three. Combined with a recent result of Mirzakhani and Wright, this completes the classification of higher rank affine…

Geometric Topology · Mathematics 2020-03-10 David Aulicino , Duc-Manh Nguyen

We study a Fourier-Mukai kernel associated to a GIT wall-crossing for arbitrarily singular (not necessarily reduced or irreducible) affine varieties over any field. This kernel is closely related to a derived fiber product diagram for the…

Algebraic Geometry · Mathematics 2021-01-18 Nitin K. Chidambaram , David Favero

We apply computations of twisted Hodge diamonds to construct an infinite number of non-Fourier-Mukai functors with well behaved target and source spaces. To accomplish this we first study the characteristic morphism in order to control it…

Algebraic Geometry · Mathematics 2024-08-07 Felix Küng

For certain K3 surfaces, there are two constructions of mirror symmetry that are very different. The first, known as BHK mirror symmetry, comes from the Landau-Ginzburg model for the K3 surface; the other, known as LPK3 mirror symmetry, is…

Algebraic Geometry · Mathematics 2019-01-29 C. J. Bott , Paola Comparin , Nathan Priddis

We prove that a hyper-K\"ahler fourfold satisfying a mild topological assumption is of K3$^{[2]}$ deformation type. This proves in particular a conjecture of O'Grady stating that hyper-K\"ahler fourfolds of K3$^{[2]}$ numerical type are of…

Algebraic Geometry · Mathematics 2023-11-02 Olivier Debarre , Daniel Huybrechts , Emanuele Macrì , Claire Voisin

We develop a mixed-characteristic version of the Mori-Mukai technique for producing rational curves on K3 surfaces. We reduce modulo p, produce rational curves on the resulting K3 surface over a finite field, and lift to characteristic…

Algebraic Geometry · Mathematics 2019-12-19 Fedor Bogomolov , Brendan Hassett , Yuri Tschinkel

Bridgeland and Maciocia showed that a complex Enriques surface X has no Fourier-Mukai partners apart from itself: that is, if D^b(X) = D^b(Y) then X = Y. We extend this to twisted Fourier-Mukai partners: if alpha is the non-trivial element…

Algebraic Geometry · Mathematics 2021-03-16 Nicolas Addington , Andrew Wray

Some questions are posted at the end of Chapter 16 of Huybrechts' book 'Lectures on K3 Surfaces', concerning the bounded derived category of a K3 surface $D^b(S)$. Let $E$ be a spherical object in $D^b(S)$. The first question asks if there…

Algebraic Geometry · Mathematics 2023-10-18 Chunyi Li , Shengxuan Liu

We consider real forms of relatively minimal rational surfaces F_m. Connected components of moduli of real non-singular curves in |-2K_{F_m}| had been classified recently for m=0, 1, 4 in math.AG/0312396. Applying similar methods, here we…

Algebraic Geometry · Mathematics 2009-12-08 Viacheslav V. Nikulin , Sachiko Saito

We show that the conjectural construction proposed by Bayer, Bertram, Macr\'i and Toda gives rise to Bridgeland stability conditions for a principally polarized abelian three-fold with Picard rank one by proving that tilt stable objects…

Algebraic Geometry · Mathematics 2015-11-24 Antony Maciocia , Dulip Piyaratne

We prove that exact functors between the categories of perfect complexes supported on projective schemes are of Fourier--Mukai type if the functor satisfies a condition weaker than being fully faithful. We also get generalizations of the…

Algebraic Geometry · Mathematics 2014-07-09 Alberto Canonaco , Paolo Stellari

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

Let $X$ be a K3 surface over a number field. We prove that $X$ has infinitely many specializations where its Picard rank jumps, hence extending our previous work with Shankar--Shankar--Tang to the case where $X$ might have potentially bad…

Number Theory · Mathematics 2024-12-11 Salim Tayou

Works by O'Grady allow to associate to a 2-dimensional Gushel-Mukai variety, which is a K3 surface, a double EPW sextic. We characterize the K3 surfaces whose associated double EPW sextic is smooth. As a consequence, we are able to produce…

Algebraic Geometry · Mathematics 2025-01-03 Pietro Beri

Let X and Y be smooth complex projective varieties. Orlov conjectured that if X and Y are derived equivalent then their motives M(X) and M(Y) are isomorphic in Voevodsky's triangulated category of geometrical motives with rational…

Algebraic Geometry · Mathematics 2011-05-24 Alessio Del Padrone , Claudio Pedrini

We present a complete classification of complex projective surfaces $X$ with nontrivial self-maps (i.e. surjective morphisms $f:X\rightarrow X$ which are not isomorphisms) of any given degree. The starting point of our classification are…

Algebraic Geometry · Mathematics 2010-11-30 Antonio Rapagnetta , Pietro Sabatino