2 papers
math.AG2013
On Schoen surfaces
Ciro Ciliberto, Margarida Mendes Lopes, Xavier Roulleau
We give a new construction of the irregular, generalized Lagrangian, surfaces of general type with p_g=5, χ=2, K^2=8, recently discovered by Chad Schoen. Our approach proves that,…
math.AG2013
On the PSL(2,19)-invariant cubic sevenfold
Atanas Iliev, Xavier Roulleau
It has been proved by Adler that there exists a unique cubic hypersurface X in P^8 which is invariant under the action of the simple group PSL(2,19). In the present note we study t…