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Related papers: Towards the Green-Griffiths-Lang conjecture

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We give a generalization of the classical Bombieri--Schneider--Lang criterion in transcendence theory. We give a local notion of $LG$--germ, which is similar to the notion of $E$-- function and Gevrey condition, and which generalize (and…

Algebraic Geometry · Mathematics 2008-11-20 Carlo Gasbarri

Let $X$ be a quotient of a bounded domain in $\mathbb C^n$. Under suitable assumptions, we prove that every subvariety of $X$ not included in the branch locus of the quotient map is of log general type in some orbifold sense. This…

Algebraic Geometry · Mathematics 2022-07-28 Benoît Cadorel , Simone Diverio , Henri Guenancia

In this short note, we will show the following weak evidence of S. Lang conjecture over function fields. Let f : X ---> Y be a projective and surjective morphism of algebraic varieties over an algebraically closed field k of characteristic…

alg-geom · Mathematics 2008-02-03 Atsushi Moriwaki

This is a remastered and expanded version of a an earlier preprint of the author, in which we give a fully algebraic proof of an important theorem of Demailly, stating the existence of many Green-Griffiths jet differentials on a complex…

Algebraic Geometry · Mathematics 2026-04-22 Benoit Cadorel

A Generalized Hyperelliptic Variety (GHV) is the quotient of an abelian variety by a free action of a finite group which does not contain any translation. These varieties are natural generalizations of bi-elliptic surfaces. In this paper we…

Algebraic Geometry · Mathematics 2024-03-21 Martina Monti , Ana Quedo

This paper is Part III of a series of three. We begin by introducing the notion of $h$-special varieties, which can be seen as varieties "chain-connected by the Zariski closures of entire curves." We prove that if $X$ is either a special…

Algebraic Geometry · Mathematics 2025-12-24 Benoit Cadorel , Ya Deng , Katsutoshi Yamanoi

By using techniques of holomorphic jets and Jacobian fields, we devise a non-equidistribution theory of holomorphic curves into complex projective varieties intersecting normal crossing divisors. Based on this theory established, we prove…

Complex Variables · Mathematics 2022-03-31 Xianjing Dong , Peichu Hu

Jet ampleness of line bundles generalizes very ampleness by requiring the existence of enough global sections to separate not just points and tangent vectors, but also their higher order analogues called jets. We give sharp bounds…

Algebraic Geometry · Mathematics 2021-07-13 José Luis González , Zhixian Zhu

We formulate and prove the existence of an asymptotic duality along the fibers of the Green-Griffiths jet bundles over projective manifolds. The existence of global sections for these bundles and also for their dual sheaves has been…

Algebraic Geometry · Mathematics 2019-07-22 Mohammad Reza Rahmati

Let $G$ be a simply-connected semisimple algebraic group over an algebraically closed field of characteristic $p$, assumed to be larger than the Coxeter number. The "support variety" of a $G$-module $M$ is a certain closed subvariety of the…

Representation Theory · Mathematics 2018-03-28 Pramod N. Achar , William Hardesty , Simon Riche

This survey presents recent developments concerning the Shafarevich conjecture, non-abelian Hodge theories, hyperbolicity, and the topology of complex algebraic varieties, as well as the interplay among these areas. More precisely, we…

Algebraic Geometry · Mathematics 2026-01-01 Ya Deng

Givental has defined a Lagrangian cone in a symplectic vector space which encodes all genus-zero Gromov-Witten invariants of a smooth projective variety X. Let Y be the subvariety in X given by the zero locus of a regular section of a…

Algebraic Geometry · Mathematics 2014-05-13 Tom Coates

Generalizing the well-known Green Conjecture on syzygies of canonical curves, Green and Lazarsfeld formulated in 1986 the Secant Conjecture predicting that a line bundle L of sufficiently high degree on a curve has a non-linear p-syzygy if…

Algebraic Geometry · Mathematics 2016-07-27 Gavril Farkas , Michael Kemeny

We prove that the abundance conjecture holds on a variety $X$ with mild singularities if $X$ has many reflexive differential forms with coefficients in pluricanonical bundles, assuming the Minimal Model Program in lower dimensions. This…

Algebraic Geometry · Mathematics 2025-08-22 Vladimir Lazić , Thomas Peternell

We define and study jet bundles in the geometric orbifold category. We show that the usual arguments from the compact and the logarithmic settings do not all extend to this more general framework. This is illustrated by simple examples of…

Algebraic Geometry · Mathematics 2020-04-06 Frédéric Campana , Lionel Darondeau , Erwan Rousseau

We introduce the concept of directed orbifold, namely triples (X, V, D) formed by a directed algebraic or analytic variety (X, V), and a ramification divisor D, where V is a coherent subsheaf of the tangent bundle TX. In this context, we…

Algebraic Geometry · Mathematics 2021-11-17 Frédéric Campana , Lionel Darondeau , Jean-Pierre Demailly , Erwan Rousseau

We consider the following conjecture: if X is a smooth projective variety over a field of characteristic zero, then there is a dense set of reductions X_s of X to positive characteristic such that the action of the Frobenius morphism on the…

Commutative Algebra · Mathematics 2011-06-02 Mircea Mustata , Vasudevan Srinivas

The generalized Lax conjecture asserts that each hyperbolicity cone is a linear slice of the cone of positive semidefinite matrices. We prove the conjecture for a multivariate generalization of the matching polynomial. This is further…

Combinatorics · Mathematics 2016-11-21 Nima Amini

We consider the following conjecture: if X is a smooth projective variety over a field of characteristic zero, then there is a dense set of reductions X_s to positive characteristic such that the action of the Frobenius morphism on the top…

Commutative Algebra · Mathematics 2011-06-02 Mircea Mustata

A celebrated conjecture of Kobayashi and Lang says that the canonical line bundle $K_X$ of a Kobayashi hyperbolic compact complex manifold $X$ is ample. In this note we prove that $K_X$ is ample if $X$ is projective and satisfies a stronger…

Algebraic Geometry · Mathematics 2017-09-05 Aleksei Golota