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math.AG2019
Classification of the invariants of foliations by curves of low degree on the three-dimensional projective space
Maurício Corrêa, Marcos Jardim, Simone Marchesi
We study foliations by curves on the three-dimensional projective space with no isolated singularities, which is equivalent to assuming that the conormal sheaf is locally free. We…
math.AG2019★ 3 cited
Triangular arrangements on the projective plane
Simone Marchesi, Jean Vallès
In this work we study line arrangements consisting in lines passing through three non-aligned points. We call them triangular arrangements. We prove that any combinatorics of a tri…