Homological projective duality conjecture for generalized Pfaffian varieties

From papers

Let WW be a vector space of dimension nn. For each integer tt with

0tn/2,0\leq t\leq \lfloor n/2\rfloor,

consider the generalized Pfaffian varieties

X=Pf(2t,W),Y=Pf(2n/22t,W).X = \operatorname{Pf}(2t,W),\qquad Y = \operatorname{Pf}(2\lfloor n/2\rfloor - 2t,W^*).

A noncommutative resolution of singularities is a resolution of the corresponding variety by a noncommutative algebra.

Generalized Pfaffian HPD conjecture. For every 0tn/20\leq t\leq \lfloor n/2\rfloor, there exist noncommutative resolutions of singularities of XX and YY which are Homologically Projectively Dual.

This would extend homological projective duality beyond the basic Grassmannian–Pfaffian pair to generalized Pfaffian varieties. It is proposed as a possible direction of generalization, and no proof or resolution is given in the paper.

Progress summary

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Sources & referencesView supporting material

Primary source

Alexander Kuznetsov, “Homological projective duality for Grassmannians of lines”, arXiv:math/0610957 (2006).

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