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4 papers
On the Bielliptic and bihyperelliptic loci
Paola Frediani, Paola Porru
We study some particular loci inside the moduli space , namely the bielliptic locus (i.e. the locus of curves admitting a cover over an elliptic curve ) and…
Divisors of
Paola Porru, Sammy Alaoui Soulimani
We construct two divisors in the moduli space and we check their invariance and non-invariance under the canonical involution introduced by C. Birkenha…
Shimura varieties in the Torelli locus via Galois coverings of elliptic curves
Paola Frediani, Matteo Penegini, Paola Porru
We study Shimura subvarieties of obtained from families of Galois coverings where is a smooth complex projective curve of genus $g' \geq 1…
Shimura varieties in the Torelli locus via Galois coverings
Paola Frediani, Alessandro Ghigi, Matteo Penegini
Given a family of Galois coverings of the projective line we give a simple sufficient condition ensuring that the closure of the image of the family via the period mapping is a spe…