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Related papers: A stronger derived Torelli theorem for K3 surfaces

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We conjecture that a natural twisted derived category of any hyper-K\"ahler variety of $K3^{[n]}$-type is controlled by its Markman-Mukai lattice. We prove the conjecture under numerical constraints, and our proof relies heavily on…

Algebraic Geometry · Mathematics 2025-06-24 Ruxuan Zhang

We develop some basic results in a higher dimensional foliated Mori theory, and show how these results can be used to prove a structure theorem for the Kleiman-Mori cone of curves in terms of the numerical properties of $K_{\mathcal{F}}$…

Algebraic Geometry · Mathematics 2019-11-20 Calum Spicer

We consider the family of Torelli homeomorphisms on a genus-three surface given by powers of a fixed bounding pair map. For each such homeomorphism $\phi$ we determine the number of connected components of the fixed point set of the induced…

Geometric Topology · Mathematics 2025-10-16 Allen Bao , Anunoy Chakraborty , David L. Duncan , Jordan Larson , Kelson McBride

A holomorphic torsion invariant of K3 surfaces with involution was introduced by the second-named author. In this paper, we completely determine its structure as an automorphic function on the moduli space of such K3 surfaces. On every…

Algebraic Geometry · Mathematics 2018-04-20 Shouhei Ma , Ken-Ichi Yoshikawa

This is a systematic exposition of recent results which completely describe the group of automorphisms and the group of autoequivalences of generic analytic K3 surfaces. These groups, hard to determine in the algebraic case, admit a good…

Algebraic Geometry · Mathematics 2009-11-13 Emanuele Macri , Paolo Stellari

For each member of an infinite family of homology classes in the K3-surface E(2), we construct infinitely many non-isotopic symplectic tori representing this homology class. This family has an infinite subset of primitive classes. We also…

Geometric Topology · Mathematics 2007-05-23 Tolga Etgü , B. Doug Park

We classify smooth surfaces whose higher cohomologies of i-forms for all i vanish. We show that if such a surface is not affine, then it has essentially two possibilities.

alg-geom · Mathematics 2008-02-03 N. Mohan Kumar

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 Looijenga--Lunts--Verbitsky Lie algebra acting on the cohomology of a hyperk\"ahler variety is a derived invariant, and obtain from this a number of consequences for the action on cohomology of derived equivalences between…

Algebraic Geometry · Mathematics 2023-09-27 Lenny Taelman

We show that a proof in multiplicative linear logic can be represented as a decorated surface, such that two proofs are logically equivalent just when their surfaces are geometrically equivalent. This is an extended abstract for…

Logic in Computer Science · Computer Science 2017-01-19 Lawrence Dunn , Jamie Vicary

Given X a K3 surface, a mirror dual to X can be identified with a component of the moduli space of semistable sheaves on X. We consider fibrations by K3 surfaces over a one dimensional base that are Calabi-Yau and we obtain a dual fibration…

Algebraic Geometry · Mathematics 2011-01-18 Elena Andreini , Cristina Martinez , Andrey Todorov

The name "K3 surfaces" was coined by A. Weil in 1957 when he formulated a research programme for these surfaces and their moduli. Since then, irreducible holomorphic symplectic manifolds have been introduced as a higher dimensional analogue…

Algebraic Geometry · Mathematics 2011-05-30 V. Gritsenko , K. Hulek , G. K. Sankaran

We introduce filtered cohomologies of differential forms on symplectic manifolds. They generalize and include the cohomologies discussed in Paper I and II as a subset. The filtered cohomologies are finite-dimensional and can be associated…

Symplectic Geometry · Mathematics 2014-05-06 Chung-Jun Tsai , Li-Sheng Tseng , Shing-Tung Yau

The notion of a K3 spectrum is introduced in analogy with that of an elliptic spectrum and it is shown that there are "enough" K3 spectra in the sense that for all K3 surfaces X in a suitable moduli stack of K3 surfaces there is a K3…

Algebraic Topology · Mathematics 2020-02-13 Markus Szymik

We investigate topological descriptors for 3D surface analysis, i.e. the classification of surfaces according to their geometric fine structure. On a dataset of high-resolution 3D surface reconstructions we compute persistence diagrams for…

Computer Vision and Pattern Recognition · Computer Science 2016-01-25 Matthias Zeppelzauer , Bartosz Zieliński , Mateusz Juda , Markus Seidl

We introduce a linearised form of the square root of the Todd class inside the Verbitsky component of a hyper-K\"ahler manifold using the extended Mukai lattice. This enables us to define a Mukai vector for certain objects in the derived…

Algebraic Geometry · Mathematics 2022-11-15 Thorsten Beckmann

Assuming the standard framework of mirror symmetry, a conjecture is formulated describing how the diffeomorphism group of a Calabi-Yau manifold Y should act by families of Fourier-Mukai transforms over the complex moduli space of the mirror…

Algebraic Geometry · Mathematics 2007-05-23 Balazs Szendroi

We prove that if two abelian varieties have equivalent derived categories then the derived categories of the smooth stacks associated to the corresponding Kummer varieties are equivalent as well. The second main result establishes necessary…

Algebraic Geometry · Mathematics 2007-05-23 Paolo Stellari

We study the derived categories of coherent sheaves on Gushel-Mukai varieties. In the derived category of such a variety, we isolate a special semiorthogonal component, which is a K3 or Enriques category according to whether the dimension…

Algebraic Geometry · Mathematics 2019-02-20 Alexander Kuznetsov , Alexander Perry

This note is a summary of our work [OO] which provides an explicit and global moduli-theoretic framework for the collapsing of Ricci-flat Kahler metrics and we use it to study especially the K3 surfaces case. For instance, it allows us to…

Algebraic Geometry · Mathematics 2018-05-07 Yuji Odaka , Yoshiki Oshima
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