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相关论文: Hyperbolicity of the moduli of certain Fano threef…

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We investigate versions of the Shafarevich conjecture, as proved for curves and abelian varieties by Faltings, for other classes of varieties. We first obtain analogues for certain Fano threefolds. We use these results to prove the…

数论 · 数学 2017-05-10 Ariyan Javanpeykar , Daniel Loughran

In this paper, we study the algebraic hyperbolicity of very general surfaces in general Fano threefolds with Picard number one. We completely classify the algebraically hyperbolicity of those surfaces, except for surfaces in weighted…

代数几何 · 数学 2025-02-11 Haesong Seo

Motivated by Lang-Vojta's conjectures on hyperbolic varieties, we prove a new version of the Shafarevich conjecture in which we establish the finiteness of pointed families of polarized varieties. We then give an arithmetic application to…

代数几何 · 数学 2024-10-10 Ariyan Javanpeykar , Ruiran Sun , Kang Zuo

We study the moduli spaces of rational curves on prime Fano threefolds of index 1. For general threefolds of most genera we compute the dimension and the number of irreducible components of these moduli spaces. Our results confirm Geometric…

代数几何 · 数学 2019-08-26 Brian Lehmann , Sho Tanimoto

We show that a non-toric $\mathbb{Q}$-factorial terminal Fano threefold of Picard rank $1$ and Fano index $13$ is a weighted hypersurface of degree $12$ in $\mathbb{P}(3,4,5,6,7)$.

代数几何 · 数学 2026-01-22 Yuri Prokhorov

We classify Q-Fano threefolds of Fano index > 2 and big degree.

代数几何 · 数学 2016-01-29 Yuri Prokhorov

We prove that the degree of Fano threefolds with terminal Q-factorial singularities and Picard number one is at most 125/2 and the bound is sharp.

代数几何 · 数学 2010-04-26 Yu. G. Prokhorov

The main result of this note is an effective uniform bound for the number of deformation types of certain nonisotrivial families of canonically polarized manifolds. It extends the author's earlier such bound for the classical Shafarevich…

代数几何 · 数学 2010-06-21 Gordon Heier

We prove that Generalized Mukai Conjecture holds for Fano manifolds $X$ of pseudoindex $i_X \ge (\dim X +3)/3$. We also give different proofs of the conjecture for Fano fourfolds and fivefolds.

代数几何 · 数学 2009-12-14 Carla Novelli , Gianluca Occhetta

We study Fano threefolds with Picard number one equipped with a holomorphic section in $\Omega_V^1(1)$.

代数几何 · 数学 2007-05-23 Priska Jahnke , Ivo Radloff

For a Fano manifold of pseudo-index at least 3 and $c_1^2-2c_2$ nef, we show irreducibility of certain spaces of curves on the Fano manifold implies the manifold is a union of rational surfaces.

代数几何 · 数学 2007-05-23 A. J. de Jong , Jason Michael Starr

General hyperplane sections of a Fano threefold $Y$ of index 2 and Picard rank 1 are del Pezzo surfaces, and their Picard group is related to a root system. To the corresponding roots, we associate objects in the Kuznetsov component of $Y$…

代数几何 · 数学 2025-08-06 Matteo Altavilla , Marin Petkovic , Franco Rota

We classify all 1-nodal degenerations of smooth Fano threefolds with Picard number 1 (both nonfactorial and factorial) and describe their geometry. In particular, we describe a relation between such degenerations and smooth Fano threefolds…

代数几何 · 数学 2024-11-14 Alexander Kuznetsov , Yuri Prokhorov

In this paper, we prove the Shafarevich conjecture for proper hyperbolic polycurves, which is a higher dimensional analogue of that for proper hyperbolic curves. First, we study theories of proper hyperbolic polycurves over regular schemes.…

数论 · 数学 2019-11-05 Ippei Nagamachi , Teppei Takamatsu

We classify the irreducible components of the space of foliations on Fano 3-folds with rank one Picard group. As a corollary we obtain a classification of holomorphic Poisson structures on the same class of 3-folds.

代数几何 · 数学 2012-12-20 Frank Loray , Jorge Vitorio Pereira , Frederic Touzet

We generalize the classical approach of describing the infinitesimal Torelli map in terms of multiplication in a Jacobi ring to the case of quasi-smooth complete intersections in weighted projective space. As an application, we prove the…

代数几何 · 数学 2022-07-13 Philipp Licht

We verify Katzarkov-Kontsevich-Pantev conjecture for Landau-Ginzburg models of smooth Fano threefolds.

代数几何 · 数学 2025-09-29 Ivan Cheltsov , Victor Przyjalkowski

We prove birational superrigidity of Fano cyclic covers of index 1 over hypersurfaces in the projective space.

代数几何 · 数学 2007-05-23 Aleksandr V. Pukhlikov

This survey discusses hyperbolicity properties of moduli stacks and generalisations of the Shafarevich Hyperbolicity Conjecture to higher dimensions. It concentrates on methods and results that relate moduli theory with recent progress in…

代数几何 · 数学 2011-12-21 Stefan Kebekus

We classify Fano threefolds with only Gorenstein terminal singularities and Picard number greater than 1 satisfying an additional assumption that the $G$-invariant part of the Weil divisor class group is of rank 1 with respect to an action…

代数几何 · 数学 2016-01-29 Yuri Prokhorov
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