13 citations · 49 across the 42 of their papers we have counts for
47 papers
Symmetric correspondences with decomposable minimal equation
Elham Izadi, Herbert Lange
We study symmetric correspondences with completely decomposable minimal equation on smooth projective curves . The Jacobian of then decomposes correspondingly. For all posit…
Decomposable Jacobians
Angel Carocca, Herbert Lange, Rubí E. Rodríguez
In this paper we give examples of smooth projective curves whose Jacobians are isogenus to a product of an arbitrarily high number of Jacobians
Abelian varieties with finite abelian group action
Angel Carocca, Herbert Lange, Rubí E. Rodríguez
An automorphism of an abelian variety induces a decomposition of the variety up to isogeny. There are two such results, namely the isotypical decomposition and Roan's decomposition…
Equations for abelian subvarieties
Angel Carocca, Herbert Lange, Rubí E. Rodríguez
Given a finite group and an abelian variety acted on by , to any subgroup of , we associate an abelian subvariety on which the associated Hecke algebra $\ma…
Etale double covers of cyclic p-gonal covers
Angel Carocca, Herbert Lange, Rubí Rodríguez
This paper computes the Galois group of the Galois cover of the composition of an étale double cover of a cyclic -gonal cover for any prime . Moreover a relation between some…
The trigonal construction in the ramified case
Herbert Lange, Angela Ortega
To every double cover ramified in two points of a general trigonal curve of genus g, one can associate an étale double cover of a tetragonal curve of genus g+1. We show that the co…