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Related papers: The Hodge numbers of O'Grady 10 via Ng\^o strings

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We give an alternative computation of the Betti and Hodge numbers for manifolds of $OG6$ type using the method of Ng\^o Strings introduced by de Cataldo, Rapagnetta, and Sacc\`a.

Algebraic Geometry · Mathematics 2021-05-19 Ben Wu

We introduce the notion of a Hyper-K\"{a}hler manifold $X$ induced by a Hodge structure of K3-type. We explore this notion for the known deformation types of hyper-K\"{a}hler manifolds studying those that are induced by a K3 or abelian…

Algebraic Geometry · Mathematics 2023-08-25 Benedetta Piroddi , Ángel David Ríos Ortiz

We provide a modular construction of the Laza--Sacc\`a--Voisin compactification of the intermediate Jacobian fibration of a cubic fourfold. Additionally, we construct infinitely many $20$-dimensional families of polarized hyper-K\"ahler…

Algebraic Geometry · Mathematics 2025-01-17 Alessio Bottini

We establish a compact analog of the P = W conjecture. For a holomorphic symplectic variety with a Lagrangian fibration, we show that the perverse numbers associated with the fibration match perfectly with the Hodge numbers of the total…

Algebraic Geometry · Mathematics 2021-01-26 Junliang Shen , Qizheng Yin

We construct the first example of a stable hyperholomorphic vector bundle of rank five on every hyper-K\"ahler manifold of $\mathrm{K3}^{[2]}$-type whose deformation space is smooth of dimension ten. Its moduli space is birational to a…

Algebraic Geometry · Mathematics 2024-11-20 Alessio Bottini

Let $Y$ be a projective submanifold of the total space of the inverse of a very ample line bundle $\pi:L^{-1}\rightarrow B$ over a projective manifold $B$. Any section of $L^{-1}\rightarrow B$ is isomorphic to $B$ and the Hodge numbers of…

Algebraic Geometry · Mathematics 2023-01-02 Herbert Clemens

We review the recent development of Hodge theory for almost complex manifolds. This includes the determination of whether the Hodge numbers defined by $\bar\partial$-Laplacian are almost complex, almost K\"ahler, or birational invariants in…

Differential Geometry · Mathematics 2022-03-18 Weiyi Zhang

We determine the structure of the Hodge ring, a natural object encoding the Hodge numbers of all compact Kaehler manifolds. As a consequence of this structure, there are no unexpected relations among the Hodge numbers, and no essential…

Algebraic Geometry · Mathematics 2019-02-20 D. Kotschick , S. Schreieder

In this paper we analyse the birational geometry of O'Grady ten dimensional manifolds, giving a characterisation of Kaehler classes and lagrangian fibrations. Moreover, we study symplectic compactifications of intermediate jacobian…

Algebraic Geometry · Mathematics 2020-11-02 Giovanni Mongardi , Claudio Onorati

We show that the Hodge numbers of Sasakian manifolds are invariant under arbitrary deformations of the Sasakian structure. We also present an upper semi continuity Theorem for the dimensions of kernels of a smooth family of transversely…

Differential Geometry · Mathematics 2019-11-06 Paweł Raźny

We give a formula computing the irregular Hodge numbers for a confluent hypergeometric differential equation.

Algebraic Geometry · Mathematics 2023-06-22 Claude Sabbah , Jeng-Daw Yu

This thesis is devoted to the study of algebraic cycles in projective hyper-K\"ahler manifolds and strict Calabi-Yau manifolds. It contributes to the understanding of Beauville's and Voisin's conjectures on the Chow rings of projective…

Algebraic Geometry · Mathematics 2024-07-30 Chenyu Bai

We realize O'Grady's six dimensional example of irreducible holomorphic symplectic manifold as a quotient of an IHS manifold of K3$^{[3]}$-type by a birational involution, thereby computing its Hodge numbers.

Algebraic Geometry · Mathematics 2019-02-20 Giovanni Mongardi , Antonio Rapagnetta , Giulia Saccà

Given a variation of Hodge structure over $\mathbb{P}^1$ with Hodge numbers $(1,1,\dots,1)$, we show how to compute the degrees of the Deligne extension of its Hodge bundles, following Eskin-Kontsevich-M\"oller-Zorich, by using the local…

Algebraic Geometry · Mathematics 2017-06-20 Charles F. Doran , Andrew Harder , Alan Thompson

Using the Laza-Sacc\`a-Voisin construction, we give a simple proof for the fact that the Euler characteristic of a hyper-K\"ahler manifold of OG10 type is 176,904, a result previously established by Mozgovoy.

Algebraic Geometry · Mathematics 2019-11-06 Klaus Hulek , Radu Laza , Giulia Saccà

We investigate the Hodge structure of the singular O'Grady's six and ten dimensional examples of irreducible symplectic varieties. In particular, we compute some of their Betti numbers and their Euler characteristic. As consequence, we…

Algebraic Geometry · Mathematics 2022-03-28 Valeria Bertini , Franco Giovenzana

The purpose of this paper is to establish several new results about the Hodge theory of Lagrangian fibrations on (not necessarily compact) holomorphic symplectic manifolds. Let $M$ be a holomorphic symplectic manifold of dimension $2n$ that…

Algebraic Geometry · Mathematics 2026-03-17 Christian Schnell

For the sake of hyperk{\"a}hler SYZ conjecture, finding holomorphic Lagrangian fibrations becomes an important issue. Toric hyperk{\"a}hler manifolds are real dimension $4n$ non-compact hyperk{\"a}hler manifolds which are quaternion analog…

Differential Geometry · Mathematics 2011-10-04 Craig van Coevering , Wei Zhang

We prove that the wreath product orbifolds studied earlier by the first author provide a large class of higher dimensional examples of orbifolds whose orbifold Hodge numbers coincide with the ordinary ones of suitable resolutions of…

Algebraic Geometry · Mathematics 2009-10-31 Weiqiang Wang , Jian Zhou

We prove that the bimeromorphic class of a hyperk\"ahler manifold deformation equivalent to O'Grady's six dimensional one is determined by the Hodge structure of its Beauville-Bogomolov lattice by showing that the monodromy group is…

Algebraic Geometry · Mathematics 2020-11-02 Giovanni Mongardi , Antonio Rapagnetta
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