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Related papers: Lagrangian fibrations on Nikulin-type orbifolds

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We construct a flagged $\infty$-category ${\sf Corr}$ of $\infty$-categories and bimodules among them. We prove that ${\sf Corr}$ classifies exponentiable fibrations. This representability of exponentiable fibrations extends that…

Category Theory · Mathematics 2020-06-25 David Ayala , John Francis

We consider mirror symmetry for (essentially arbitrary) hypersurfaces in (possibly noncompact) toric varieties from the perspective of the Strominger-Yau-Zaslow (SYZ) conjecture. Given a hypersurface $H$ in a toric variety $V$ we construct…

Symplectic Geometry · Mathematics 2015-07-31 Mohammed Abouzaid , Denis Auroux , Ludmil Katzarkov

We show that hyperelliptic symplectic Lefschetz fibrations are symplectically birational to two-fold covers of rational ruled surfaces, branched in a symplectically embedded surface. This reduces the classification of genus 2 fibrations to…

Geometric Topology · Mathematics 2007-05-23 B. Siebert , G. Tian

We give a new way to produce examples of Lagrangians in shifted symplectic derived stacks, based on multiple intersections. Specifically, we show that an m-fold fiber product of Lagrangians in a shifted symplectic derived stack its itself…

Algebraic Geometry · Mathematics 2022-10-12 Oren Ben-Bassat

Generalizing work of Markushevich--Tikhomirov and Arbarello--Sacc\`a--Ferretti, we use relative Prym varieties to construct Lagrangian fibered symplectic varieties in infinitely many dimensions. We then give criteria for when the…

Algebraic Geometry · Mathematics 2024-04-05 Emma Brakkee , Chiara Camere , Annalisa Grossi , Laura Pertusi , Giulia Saccà , Sasha Viktorova

We describe the minimal number of critical points and the minimal number $s$ of singular fibres for a non isotrivial fibration of a surface $S$ over a curve $B$ of genus $1$, constructing a fibration with $s=1$ and irreducible singular…

Algebraic Geometry · Mathematics 2019-09-10 Fabrizio Catanese , Pietro Corvaja , Umberto Zannier

We prove that the direct image complex for the $D$-twisted $SL_n$ Hitchin fibration is determined by its restriction to the elliptic locus, where the spectral curves are integral. The analogous result for $GL_n$ is due to P.-H. Chaudouard…

Algebraic Geometry · Mathematics 2019-02-20 Mark Andrea A. de Cataldo

We consider birational projective contractions f:X -> Y from a smooth symplectic variety X over the complex numbers. We first show that exceptional rational curves on X deform in a family of dimension at least 2n-2. Then we show that these…

Algebraic Geometry · Mathematics 2007-05-23 Jan Wierzba

We extend Perutz's Lagrangian matching invariants to 3-manifolds which are not necessarily fibred using the technology of holomorphic quilts. We prove an isomorphism of these invariants with Ozsvath-Szabo's Heegaard Floer invariants for…

Symplectic Geometry · Mathematics 2012-12-05 Yanki Lekili

We present a generalized Weinstein Tubular Neighbourhood theorem for Lagrangian subbundles of Symplectic fibrations. This is then used to study the space of Lagrangian fibrations of symplectic manifolds.

Symplectic Geometry · Mathematics 2009-05-06 Nicolas Roy

In the second of a pair of papers, we complete the construction of Seiberg-Witten-like invariants for smooth four-manifolds equipped with broken fibrations, prove an index formula, and compute some examples.

Symplectic Geometry · Mathematics 2014-11-11 Tim Perutz

Given a cubic 4-fold $Y$, we provide an easy Hodge-theoretic proof of the following result of Iliev--Manivel: the relative intermediate Jacobian of the universal family of cubic 5-folds $Z$ extending $Y$ is a Lagrangian fibration.

Algebraic Geometry · Mathematics 2011-11-01 D. Markushevich

We prove that any symplectic automorphism of finite order of an irreducible holomorphic symplectic manifold of O'Grady's 10-dimensional deformation type is trivial.

Algebraic Geometry · Mathematics 2024-03-11 Luca Giovenzana , Annalisa Grossi , Claudio Onorati , Davide Cesare Veniani

We study Lagrangian cobordism groups of closed symplectic surfaces of genus $g \geq 2$ whose relations are given by unobstructed, immersed Lagrangian cobordisms. Building upon work of Abouzaid and Perrier, we compute these cobordism groups…

Symplectic Geometry · Mathematics 2024-10-14 Dominique Rathel-Fournier

Let F be a fibration on a simply-connected base with symplectic fibre (M, \omega). Assume that the fibre is nilpotent and T^{2k}-separable for some integer k or a nilmanifold. Then our main theorem, Theorem 1.8, gives a necessary and…

Algebraic Topology · Mathematics 2011-08-04 Katsuhiko Kuribayashi

Classically, an indecomposable class $R$ in the cone of effective curves on a K3 surface $X$ is representable by a smooth rational curve if and only if $R^2=-2$. We prove a higher-dimensional generalization conjectured by Hassett and…

Algebraic Geometry · Mathematics 2015-09-16 Benjamin Bakker

We introduce the wrapped Donaldson-Fukaya category of a (generalized) semi-toric SYZ fibration with Lagrangian section satisfying a tameness condition at infinity. Examples include the Gross fibration on the complement of an anti-canonical…

Symplectic Geometry · Mathematics 2022-04-12 Yoel Groman

We look at natural foliations on the Painlev\'e VI moduli space of regular connections of rank 2 on $\pp ^1 -{t_1,t_2,t_3,t_4}$. These foliations are fibrations, and are interpreted in terms of the nonabelian Hodge filtration, giving a…

Algebraic Geometry · Mathematics 2011-06-13 Frank Loray , Masa-Hiko Saito , Carlos T. Simpson

The first part of this paper is a review of the Strominger-Yau-Zaslow conjecture in various settings. In particular, we summarize how, given a pair (X,D) consisting of a Kahler manifold and an anticanonical divisor, families of special…

Symplectic Geometry · Mathematics 2008-03-20 Denis Auroux

We study parabolic automorphisms of irreducible holomorphically symplectic manifolds with a lagrangian fibration. Such automorphisms are (possibly up to taking a power) fiberwise translations on smooth fibers, and their orbits in a general…

Algebraic Geometry · Mathematics 2025-02-04 Ekaterina Amerik , Serge Cantat