A. Rojas

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20032008

most citedPrym-Tyurin varieties via Hecke algebras

2 citations · 2 across the 6 of their papers we have counts for

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6 papers · 1 filter

math.AG2008

Products of Jacobians as Prym-Tyurin varieties

A. Carocca, H. Lange, R. E. Rodriguez +1

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…

math.AG2008

Prym-Tyurin varieties using self-products of groups

A. Carocca, H. Lange, R. E. Rodriguez +1

Given Prym-Tyurin varieties of exponent $q$ with respect to a finite group $G$ , a subgroup $H$ and a set of rational irreducible representations of $G$ satisfying some additional p…

math.AG2008★ 2 cited

Prym-Tyurin varieties via Hecke algebras

A. Carocca, H. Lange, R. E. Rodriguez +1

Let $G$ denote a finite group and $π : Z \to Y$ a Galois covering of smooth projective curves with Galois group $G$ . For every subgroup $H$ of $G$ there is a canonical action of the…

math.AG2007

A Galois-theoretic approach to Kanev's correspondence

H. Lange, A. Rojas

Let $G$ be a finite group, $Λ$ an absolutely irreducible $Z [G]$ -module and $w$ a weight of $Λ$ . To any Galois covering with group $G$ we associate two correspondences, the Schur a…

math.AG2004

A family of Prym-Tyurin varieties of exponent 3

H. Lange, S. Recillas, A. M. Rojas

We investigate a family of correspondences associated to étale coverings of degree 3 of hyperelliptic curves. They lead to Prym-Tyurin varieties of exponent 3. We identify these va…

math.AG2003

Group actions on Jacobian varieties

Anita M. Rojas

Consider a finite group $G$ acting on a Riemann surface $S$ , and the associated branched Galois cover $π_{G} : S \to Y = S / G$ . We introduce the concept of geometric signature for the act…