Relative orthogonal Grassmannian decomposition conjecture for quadric fibrations
Relative orthogonal Grassmannian decomposition conjecture for quadric fibrations
Let be a quadric fibration of relative dimension over a smooth base, with fibers of rank at least , where is odd. Let be the sheaf of even Clifford algebras associated with the quadric fibration. Relative orthogonal Grassmannian conjecture. There exists a semiorthogonal decomposition
where is the derived category of the sheaf of even Clifford algebras over . This is presented as a natural generalization of the pencil-of-quadrics conjecture to arbitrary quadric fibrations, under a rank condition ensuring flatness. Its resolution status is not specified in the supplied text.
Sources & referencesView supporting material
Primary source
Saket Shah, “Flips for spaces of quadrics on del Pezzo varieties”, arXiv:2602.07366 (2026).
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