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Brill-Noether reconstruction of index one prime Fano threefolds

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arxiv 2207.01021 v2 pith:PWM3SZDH submitted 2022-07-03 math.AG

Brill-Noether reconstruction of index one prime Fano threefolds

classification math.AG
keywords fanobrill-noetherconjectureindexkuznetsovmathcalprimethreefold
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We show by a uniform argument that every index one prime Fano threefold $X$ of genus $g\geq 6$ can be reconstructed as a Brill-Noether locus inside a Bridgeland moduli space of stable objects in the Kuznetsov component $\mathcal{K}u(X)$. As an application, we verify Mukai's conjecture on the existence of dual embeddings of $X$. Moreover, we establish a refined categorical Torelli theorem for $X$ and classify autoequivalences of $\mathcal{K}u(X)$. We also give an alternative disproof of Kuznetsov's Fano threefold conjecture.

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Cited by 2 Pith papers

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