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Equivariant unirationality of Fano threefolds

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arxiv 2502.19598 v1 pith:NL3QSAEH submitted 2025-02-26 math.AG

classification math.AG
keywords fanothreefoldsunirationalityactionsequivariantfinitegroups
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We study unirationality of actions of finite groups on Fano threefolds.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Equivariant unirationality of toric varieties

    math.AG 2025-06 accept novelty 7.0 of 10

    For smooth projective toric varieties with a finite group action preserving the dense torus, equivariant unirationality is equivalent to the vanishing of the equivariant universal torsor obstruction class ∂(1_Pic(X)).

  2. Equivariant geometry of cubic threefolds with non-isolated singularities

    math.AG 2025-05 conditional novelty 7.0 of 10

    Every finite group action on a cubic threefold singular along a line, plane, or the chordal curve is linearizable; actions on cubics singular along a conic are generally not linearizable, though all such actions are u...

  3. Smooth Fano 3-folds satisfying Condition (A)

    math.AG 2025-05 conditional novelty 6.0 of 10

    Smooth Fano 3-folds are classified by Condition (A): all members of 35 families satisfy it, no members of 32 families satisfy it, and the remaining 38 families contain members that fail it.

  4. K-stability of Fano 3-folds in the World of Null-A

    math.AG 2025-05 accept novelty 6.0 of 10

    Every smooth Fano 3-fold that fails Condition (A), meaning it has a finite abelian automorphism group with no fixed point, is K-polystable except for eight explicit deformation families.

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