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math.AG2021
Explicit analysis of positive dimensional fibres of and Xiao conjecture
Gian Paolo Grosselli, Irene Spelta
We focus on the positive dimensional fibres of the Prym map . We present a direct procedure to investigate infinitely many examples of positive dimensional fibre…
math.AG2021
Shimura subvarieties via endomorphisms
Irene Spelta
We show the existence of two new Shimura subvarieties of generically contained in the Torelli locus. They provide the first examples of Shimura subva…