The Grassmannian–Pfaffian categorical HP-duality conjecture

From papers

Let WW be a vector space of dimension mm, and let Pf(2k,W)\operatorname{Pf}(2k,W) denote the closure of the locus of bivectors in Λ2W\Lambda^2W of rank 2k2k. Let Gr(2,W)=Pf(2,W)\operatorname{Gr}(2,W)=\operatorname{Pf}(2,W) be the Grassmannian in its Plücker embedding, and let WW^\vee be the dual vector space. Grassmannian–Pfaffian HP-duality conjecture. For any kk there is a homological-projective duality between appropriate minimal categorical resolutions of Pf(2k,W)\operatorname{Pf}(2k,W) and Pf(2(m/2k),W)\operatorname{Pf}(2(\lfloor m/2\rfloor-k),W^\vee). When m=dimWm=\dim W is odd, these resolutions are strongly crepant. This proposes a higher-Pfaffian extension of Grassmannian–Pfaffian duality; the source gives no resolution.

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Sources & referencesView supporting material

Primary source

Alexander Kuznetsov, “Semiorthogonal decompositions in algebraic geometry”, arXiv:1404.3143 (2015).

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