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math.AG2022
Perazzo 3-folds and the weak Lefschetz property
Luca Fiorindo, Emilia Mezzetti, Rosa M. Miró-Roig
We deal with Perazzo 3-folds in , i.e. hypersurfaces of degree defined by a homogeneous polynomial $f(x_0,x_1,x_2,u,v)=p_0(u,v)x_0+p_1(…
math.AG2022
Pencils of singular quadrics of constant rank and their orbits
Ada Boralevi, Emilia Mezzetti
We give a geometric description of singular pencils of quadrics of constant rank, relating them to the splitting type of some naturally associated vector bundles on .…