Results 1 to 10 of about 2,842 (71)

Products of Jacobians as Prym-Tyurin varieties [PDF]

open access: yesGeometriae Dedicata, 2008
Let $X_1, ..., X_m$ denote smooth projective curves of genus $g_i \geq 2$ over an algebraically closed field of characteristic 0 and let $n$ denote any integer at least equal to $1+\max_{i=1}^m g_i$. We show that the product $JX_1 \times ... \times JX_m$ of the corresponding Jacobian varieties admits the structure of a Prym-Tyurin variety of exponent ...
Carocca Becerra, Ángel Denys   +3 more
openaire   +11 more sources

Rational points on abelian varieties over function fields and Prym varieties [PDF]

open access: yesArchiv Der Mathematik, 2020
In this paper, using a generalization of the notion of Prym variety for covers of projective varieties, we prove a structure theorem for the Mordell–Weil group of abelian varieties over function fields that are twists of abelian varieties by Galois ...
Abolfazl Mohajer
exaly   +2 more sources

Algebraic cycles on Prym varieties [PDF]

open access: yesMathematische Annalen, 2009
This article proposes a generalization of tautological rings introduced by Beauville and Moonen for Jacobians. The main result is that, under certain hypotheses, the special subvarieties of Prym varieties are algebraically equivalent and their classes ...
Maxim Arap
semanticscholar   +2 more sources

On (2,2)-decomposable genus 4 Jacobians [PDF]

open access: yes, 2023
We consider the question of when a Jacobian of a curve of genus $2g$ admits a $(2,2)$-isogeny to two polarized dimension $g$ abelian varieties. We find that one of them must be a Jacobian itself and, if the associated curve is hyperelliptic, so is the ...
Nils Bruin, Avinash Kulkarni
semanticscholar   +1 more source

Lagrangian fibrations by Prym varieties [PDF]

open access: yesRevista Matemática Contemporânea, 2019
We survey Lagrangian fibrations of holomorphic symplectic varieties, both compact and non-compact, whose fibres are Jacobians and Prym varieties.
Justin Sawon
semanticscholar   +1 more source

Decomposing Jacobians Via Galois covers [PDF]

open access: yesExperimental Mathematics, 2020
Let be a (possibly ramified) cover, with X and Y of strictly positive genus. We develop tools to identify the Prym variety of , up to isogeny, as the Jacobian of a quotient curve C of the Galois closure of a composition of with a well-chosen map that ...
D. Lombardo   +3 more
semanticscholar   +1 more source

Classifying the Metrics for Which Geodesic Flow on the Group $SO(n)$ is Algebraically Completely Integrable

open access: yesCommunications in Advanced Mathematical Sciences, 2020
The aim of this paper is to demonstrate the rich interaction between the Kowalewski-Painlev\'{e} analysis, the properties of algebraic completely integrable (a.c.i.) systems, the geometry of its Laurent series solutions, and the theory of Abelian ...
Lesfari Ahmed
doaj   +1 more source

Prym varieties of \'etale covers of hyperelliptic curves [PDF]

open access: yes, 2016
It is well known that the Prym variety of an \'etale cyclic covering of a hyperelliptic curve is isogenous to the product of two Jacobians. Moreover, if the degree of the covering is odd or congruent to 2 mod 4, then the canonical isogeny is an ...
H. Lange, A. Ortega
semanticscholar   +1 more source

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