A categorical invariant for cubic threefolds
classification
🧮 math.AG
keywords
cubiccategoricalthreefoldscategorycharacterizesclassdecompositionderived
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We prove a categorical version of the Torelli theorem for cubic threefolds. More precisely, we show that the non-trivial part of a semi-orthogonal decomposition of the derived category of a cubic threefold characterizes its isomorphism class.
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