Hypersurface arrangements of aCM type

Edoardo Ballico and Sukmoon Huh

Mathematische Nachrichten, 2022, vol. 295, issue 2, 242-258

Abstract: We investigate the arrangement of hypersurfaces on a nonsingular varieties whose associated logarithmic vector bundle is arithmetically Cohen–Macaulay (for short, aCM), and prove that the projective space is the only smooth complete intersection with Picard rank one that admits an aCM logarithmic vector bundle. We also obtain a number of results on aCM logarithmic vector bundles over several specific varieties. As an opposite situation we investigate the Torelli‐type problem that the logarithmic cohomology determines the arrangement.

Date: 2022
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https://doi.org/10.1002/mana.201900528

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