Kuznetsov's homological projective duality conjecture for Pfaffian varieties

Let WW be a vector space of dimension 2n2n. For 1kn11\le k\le n-1, let Pfk(W)P(Λ2W)\operatorname{Pf}_k(W^*)\subset\mathbb{P}(\Lambda^2W^*) be the variety of skew-forms of rank at most 2n2k2n-2k, and let Pf~k(W)\widetilde{\operatorname{Pf}}_k(W^*) denote a categorical resolution of singularities. Kuznetsov's conjecture. The Pfaffian varieties Pfk(W)\operatorname{Pf}_k(W^*) admit categorical resolutions of singularities Pf~k(W)\widetilde{\operatorname{Pf}}_k(W^*) such that

Pf~k(W)\widetilde{\operatorname{Pf}}_k(W^*)

is Homologically Projectively Dual to Pf~n1k(W)\widetilde{\operatorname{Pf}}_{n-1-k}(W). In particular, the Grassmannian of lines Gr(2,W)\operatorname{Gr}(2,W) is Homologically Projectively Dual to a certain categorical resolution of singularities Pf~(W)\widetilde{\operatorname{Pf}}(W^*) of the Pfaffian hypersurface Pf(W)\operatorname{Pf}(W^*). This extends the classical projective-duality relation (Pfk(W))=Pfn1k(W)(\operatorname{Pf}_k(W^*))^\vee=\operatorname{Pf}_{n-1-k}(W); the conjecture was proved for n=3n=3, while the general statement is not resolved in the supplied source.

Sources & referencesView supporting material

Primary source

A. Kuznetsov, L. Manivel and D. Markushevich, “Abel-Jacobi maps for hypersurfaces and non commutative Calabi-Yau's”, arXiv:0806.1154 (2009).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.