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Related papers: On Holomorphic Curves in Semi-Abelian Varieties

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For $q\leq 3$ smooth plane algebraic curves $\mathcal{C}_i$ having simple normal crossings, if the invariant logarithmic $2$-jet differential bundle associated to $(\mathbb{P}^2(\mathbb{C}), \sum_{i=1}^q \mathcal{C}_i)$ has a nonzero…

Algebraic Geometry · Mathematics 2018-04-11 Dinh Tuan Huynh , Duc-Viet Vu , Song-Yan Xie

By implementing jet differential techniques in non-archimedean geometry, we obtain a big Picard type extension theorem, which generalizes a previous result of Cherry and Ru. As applications, we establish two hyperbolicity-related results.…

Algebraic Geometry · Mathematics 2021-09-09 Dinh Tuan Huynh , Ruiran Sun , Song-Yan Xie

In this paper, we prove that, when an abelian scheme has semi-abelian degeneration along normal crossings divisor in a regular base scheme, a finite flat group scheme of torsion points of the abelian scheme degenerates to a log finite group…

Algebraic Geometry · Mathematics 2025-07-18 Kentaro Inoue

The geometric torsion conjecture asserts that the torsion part of the Mordell--Weil group of a family of abelian varieties over a complex quasiprojective curve is uniformly bounded in terms of the genus of the curve. We prove the conjecture…

Algebraic Geometry · Mathematics 2015-04-09 Benjamin Bakker , Jacob Tsimerman

By a theorem of Wahl, the canonically embedded curves which are hyperplane section of K3 surfaces are distinguished by the non-surjectivity of their Wahl map. In this paper we address the problem of distinguishing hyperplane sections of…

Algebraic Geometry · Mathematics 2010-01-28 Elisabetta Colombo , Paola Frediani , Giuseppe Pareschi

We generalize Demailly's construction of projective jet bundles and strictly negatively curved pseudometrics on them to the logarithmic case. We establish this logarithmic generalization explicitly via coordinates, just as Noguchi's…

Algebraic Geometry · Mathematics 2014-12-01 Gerd-Eberhard Dethloff , Steven Shin-Yi Lu

We prove the geometric Bombieri-Lang conjecture for projective varieties which have finite maps to abelian varieties over function fields of characteristic 0. This generalizes the recent results of Xie-Yuan, which require either the…

Number Theory · Mathematics 2026-03-03 Guoquan Gao

We study the enumerative geometry of algebraic curves on abelian surfaces and threefolds. In the abelian surface case, the theory is parallel to the well-developed study of the reduced Gromov-Witten theory of K3 surfaces. We prove complete…

Algebraic Geometry · Mathematics 2016-12-14 Jim Bryan , Georg Oberdieck , Rahul Pandharipande , Qizheng Yin

The strata of the moduli spaces of Abelian differentials are non-homogenous spaces carrying natural bi-algebraic structures. Partly inspired by the case of homogenous spaces carrying bi-algebraic structures (such as torii, Abelian varieties…

Algebraic Geometry · Mathematics 2023-06-27 Bertrand Deroin , Carlos Matheus

We generalize a fundamental theorem in higher dimensional value distribution theory about entire curves in subvarieties $X$ of semi-abelian varieties to the situation of the sequences of holomorphic maps from the unit disc into $X$. This…

Complex Variables · Mathematics 2023-04-13 Katsutoshi Yamanoi

We present a new technique to study Jacobian variety decompositions using subgroups of the automorphism group of the curve and the corresponding intermediate covers. In particular, this new method allows us to produce many new examples of…

Algebraic Geometry · Mathematics 2016-03-02 Jennifer Paulhus , Anita M. Rojas

Consider degenerations of Abelian differentials with prescribed number and multiplicity of zeros and poles. Motivated by the theory of limit linear series, we define twisted canonical divisors on pointed nodal curves to study degenerate…

Algebraic Geometry · Mathematics 2015-04-09 Dawei Chen

We study (weak) log abelian varieties with constant degeneration in the log flat topology. If the base is a log point, we further study the endomorphism algebras of log abelian varieties. In particular, we prove the dual short exact…

Algebraic Geometry · Mathematics 2019-09-04 Heer Zhao

Given two hyperbolic curves over p-adic local fields, the absolute anabelian conjecture claims that any isomorphism between their \'etale fundamental group comes from an isomorphism of schemes. This conjecture was proven by S. Mochizuki for…

Algebraic Geometry · Mathematics 2023-06-13 Emmanuel Lepage

In this paper, we develop the theory of flashes of an algebraic curve. We show that the theory is birationally invariant in a sense which we will make more precise below. We also show how the theory provides a foundation for the method of…

Algebraic Geometry · Mathematics 2010-09-17 Tristram de Piro

We study the section conjecture of anabelian geometry and the sufficiency of the finite descent obstruction to the Hasse principle for the moduli spaces of principally polarized abelian varieties and of curves over number fields. For the…

Number Theory · Mathematics 2016-09-07 Stefan Patrikis , José Felipe Voloch , Yuri Zarhin

A set of multi-homogeneous equations for the Jacobian of a genus two curve is given. The approach used is to write down affine equations for the Jacobian minus various tranlations of the Theta-divisor by [2]-division points, and then to…

Algebraic Geometry · Mathematics 2015-07-28 Mark Heiligman

We characterize decomposable principally polarized abelian varieties of the form $E\times B$, with $E$ an elliptic curve, in two different ways, which are, surprisingly, completely analogous to classical results of curve theory concerning…

Algebraic Geometry · Mathematics 2026-05-11 Nelson Alvarado , Giuseppe Pareschi

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

Recently, there are many developments on the second main theorem for holomorphic curves into algebraic varieties intersecting divisors in general position or subgeneral position. In this paper, we refine the concept of subgeneral position…

Complex Variables · Mathematics 2018-02-26 Qingchun Ji , Qiming Yan , Guangsheng Yu