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math.AG2021
Companion varieties for root systems and Fermat arrangements
Roberta Di Gennaro, Giovanna Ilardi, Rosa Maria Miró-Roig +2
Unexpected hypersurfaces are a brand name for some special linear systems. They were introduced around 2017 and are a field of intensive study since then. They attracted a lot of a…
math.AG2017★ 8 cited
Laplace equations, Lefschetz properties and line arrangements
Roberta Di Gennaro, Giovanna Ilardi
In this note we generalize the main result in [DIV: R. Di Gennaro, G. Ilardi, J. Valles, Singular hypersurfaces characterizing the Lefschetz properties J. Lond. Math. Soc. (2) 89 (…