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We obtain a Second Main Theorem type inequality for holomorphic maps $f : M \to X$, where $M$ is a parabolic manifold and $X$ is smooth projective with dim $M$ $\le$ dim $X$. We also derive a parabolic Tautological inequality for smooth…

Algebraic Geometry · Mathematics 2024-12-03 Clara Derand

We develop a Hodge theoretic invariant for families of projective manifolds that measures the potential failure of an Arakelov-type inequality in higher dimensions, one that naturally generalizes the classical Arakelov inequality over…

Algebraic Geometry · Mathematics 2022-10-12 Sándor J Kovács , Behrouz Taji

Let $(X,D)$ be a smooth log pair over $\mathbb{C}$ such that the complement $U := X \setminus D$ carries a maximally varied family of polarized manifolds. We prove a version of second main theorem on $(X,D)$ by using the Viehweg-Zuo…

Algebraic Geometry · Mathematics 2020-08-05 Ruiran Sun

In this paper we study the $\mathbb{C}^*$-fixed points in moduli spaces of Higgs bundles over a compact Riemann surface for a complex semisimple Lie group and its real forms. These fixed points are called Hodge bundles and correspond to…

Algebraic Geometry · Mathematics 2021-02-08 Olivier Biquard , Brian Collier , Oscar Garcia-Prada , Domingo Toledo

We introduce the notion of the $\textit{Nevanlinna pair}$ for a pair $(X, D)$, where $X$ is a projective variety and $D$ is an effective Cartier divisor on $X$. This notion links and unifies the Nevanlinna theory, the complex hyperbolicity…

Algebraic Geometry · Mathematics 2021-02-10 Yan He , Min Ru

This is Part II of a series of three papers. We studies the hyperbolicity of complex quasi-projective varieties $X$ in the presence of a big and reductive representation $\varrho: \pi_1(X)\to {\rm GL}_N(\mathbb{C})$. For any Galois…

Algebraic Geometry · Mathematics 2025-12-18 Benoit Cadorel , Ya Deng , Katsutoshi Yamanoi

Let Y be a non-singular projective manifold with an ample canonical sheaf, and let V be a rational variation of Hodge structures of weight one on Y with Higgs bundle E(1,0) + E(0,1), coming from a family of Abelian varieties. If Y is a…

Algebraic Geometry · Mathematics 2007-05-23 Eckart Viehweg , Kang Zuo

We generalize former results of Zuo and the first author showing some hyperbolicity properties of varieties supporting a variation of Hodge structure. Our proof only uses the special curvature properties of period domains. In particular, in…

Algebraic Geometry · Mathematics 2017-07-06 Yohan Brunebarbe , Benoit Cadorel

As a result of our study of the hyperbolicity of the moduli space of polarized manifold, we give a general big Picard theorem for a holomorphic curve on a log-smooth pair $(X,D)$ such that $W=X\setminus D$ admits a Finsler pseudometric that…

Algebraic Geometry · Mathematics 2021-07-20 Ya Deng , Steven Lu , Ruiran Sun , Kang Zuo

Let $M$ be a complex $n$-dimensional projective manifold in $\mathbb{P}^{n+r}$ endowed with the Fubini-Study metric of constant holomorphic sectional curvature $1$, $\sigma$ its second fundamental form, and $\underline{|\sigma|}^2$ the mean…

Differential Geometry · Mathematics 2019-09-19 Ping Li

Looking at the finite \'etale congruence covers $X(p)$ of a complex algebraic variety $X$ equipped with a variation of integral polarized Hodge structures whose period map is quasi-finite, we show that both the minimal gonality among all…

Algebraic Geometry · Mathematics 2020-07-28 Yohan Brunebarbe

We determine the second fundamental form of a variation of Hodge Structure of a smooth projective hypersurface using the classical identification of the Hodge structure and the action of the infinitesimal variation of Hodge structure with…

Algebraic Geometry · Mathematics 2020-07-14 Emmanuel Allaud

We discuss several numerical conditions for families of projective varieties or variations of Hodge structures.

Algebraic Geometry · Mathematics 2008-12-23 Eckart Viehweg

It is noted that using complex Hessian equations and the concavity inequalities for elementary symmetric polynomials implies a generalized form of Hodge index inequality. Inspired by this result, using G{\aa}rding's theory for hyperbolic…

Algebraic Geometry · Mathematics 2018-10-11 Jian Xiao

Let $X\subset P^N$ be a variety (respectively a patch of an analytic submanifold) and let $x\in X$ be a general point. We show that if the projective second fundamental form of $X$ at $x$ is isomorphic to the second fundamental form of a…

alg-geom · Mathematics 2007-05-23 J. M. Landsberg

We study the value distribution of holomorphic curves from a general open Riemann surface into a smooth logarithmic pair $(X, D).$ By stochastic calculus, we first obtain a version of tautological inequality (proposed by McQuillan) and a…

Complex Variables · Mathematics 2021-12-20 Xianjing Dong

Collino proved that the fundamental group of a certain Zariski open set of the symmetric square of a hyperelliptic curve is isomorphic to the integral Heisenberg group. We compute the mixed Hodge structure on this fundamental group, and…

Algebraic Geometry · Mathematics 2026-04-17 Daichi Arimatsu

The Hodge numerical invariants of a variation of Hodge structure over a smooth quas--projective variety are a measure of complexity for the global twisting of the limit mixed Hodge structure when it degenerates. These invariants appear in…

Algebraic Geometry · Mathematics 2020-12-16 Mohammad Reza Rahmati

We introduce two notions of hyperbolicity for not necessarily K\"ahler $n$-dimensional compact complex manifolds $X$. The first, called {\it balanced hyperbolicity}, generalises Gromov's K\"ahler hyperbolicity by means of Gauduchon's…

Complex Variables · Mathematics 2022-02-15 Samir Marouani , Dan Popovici

Over an arbitrary compact complex space or an arbitrary germ of complex space $X$, we provide fine resolutions of pure Hodge modules with strict supports $IC_X(\mathbb{V})$ via differential forms with locally $L^2$ boundary conditions. When…

Algebraic Geometry · Mathematics 2021-03-09 Junchao Shentu , Chen Zhao
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