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19942025
most citedLine arrangements and configurations of points with an unusual geometric property

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math.AC2025

Jacobian Ideals of Hyperplane Arrangements and their Graded Betti Numbers

Juan Migliore, Uwe Nagel

A hyperplane arrangement $\cA$ is said to be free if the corresponding Jacobian ideal $J_\cA$ is Cohen-Macaulay. If $\cA$ is free then $J_\cA$ is unmixed (i.e. equidimensional). Fr…