Results 11 to 20 of about 3,771 (225)

Lower bounds for the normalized height and non-dense subsets of varieties in an abelian variety [PDF]

open access: yes, 2010
This work is the third part of a series of papers. In the first two we considered curves and varieties in a power of an elliptic curve. Here we deal with subvarieties of an abelian variety in general.
Viada, Evelina
core   +1 more source

On Abelian Varieties [PDF]

open access: yesNagoya Mathematical Journal, 1953
In a Bourbaki seminary note, La Théorie des Fonctions Thêta, A. Weil has discussed two fundamental theorems of the general theory of Theta functions. The first, due to H. Poincaré, was proved very skilfully in the note by means of harmonic integrals on a torus and the second, due to Frobenius, was treated by the systematic use of the notion of analytic
openaire   +2 more sources

Calabi–Yau threefolds and moduli of abelian surfaces I [PDF]

open access: yes, 2001
We describe birational models and decide the rationality/unirationality of moduli spaces $\cal A$d (and $\cal A$levd) of (1, d)-polarized Abelian surfaces (with canonical level structure, respectively) for small values of d.
Sorin Popescu   +3 more
core   +1 more source

The moduli space of (111)-polarized abelian surfaces is unirational [PDF]

open access: yes, 2001
We prove that the moduli space $\cal A$11lev of (1,11)-polarized Abelian surfaces with level structure of canonical type is birational to Klein's cubic hypersurface in P4.
Sorin Popescu   +3 more
core   +1 more source

Products and polarizations of super-isolated abelian varieties [PDF]

open access: yes, 2021
In this paper we study super-isolated abelian varieties, that is, abelian varieties over finite fields whose isogeny class contains a single isomorphism class. The goal of this paper is to (1) characterize whether a product of super-isolated varieties is
Scholl, Travis   +3 more
core   +4 more sources

Les strates ne possèdent pas de variétés complètes

open access: yesComptes Rendus. Mathématique, 2020
This note gives an elementary proof that the strata of abelian differentials do not contain complete algebraic varieties.
Gendron, Quentin
doaj   +1 more source

The effective Shafarevich conjecture for abelian varieties of ${\text {GL}_{2}}$-type

open access: yesForum of Mathematics, Sigma, 2021
In this article we establish the effective Shafarevich conjecture for abelian varieties over ${\mathbb Q}$ of ${\text {GL}_2}$-type. The proof combines Faltings’ method with Serre’s modularity conjecture, isogeny estimates and results from Arakelov ...
Rafael von Känel
doaj   +1 more source

Sequences of rational torsions on abelian varieties [PDF]

open access: yes, 1991
We address the question of how fast the available rational torsion on abelian varieties over Q increases with dimension. The emphasis will be on the derivation of sequences of torsion divisors on hyperelliptic curves. Work of Hellegouarch and Lozach (and
FLYNN, E, Flynn, E. V., FLYNN, Eugene
core   +2 more sources

Finite $F$-representation type for homogeneous coordinate rings of non-Fano varieties [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2023
Finite $F$-representation type is an important notion in characteristic-$p$ commutative algebra, but explicit examples of varieties with or without this property are few.
Devlin Mallory
doaj   +1 more source

Reduction of Abelian Varieties [PDF]

open access: yes, 2000
We study semistable reduction and torsion points of abelian varieties. In particular, we give necessary and sufficient conditions for an abelian variety to have semistable reduction. We also study Néron models of abelian varieties with potentially good reduction and torsion points of small order.
Silverberg, A., Zarhin, Yu. G.
openaire   +2 more sources

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