Craw's tilting bundle and moduli conjecture for smooth toric Fano varieties

Let XX be a smooth toric Fano variety. A sequence of basepoint-free line bundles is given by

L=(OX,L1,,Lr).\mathcal{L}=(\mathscr{O}_X,L_1,\dots,L_r).

Assume that this sequence has bound quiver of sections (Q,ϱ)(Q,\varrho), and let Wt(Q)\operatorname{Wt}(Q) denote the weights of QQ. Craw's conjecture. There is such a sequence for which

XMϑ(Q,ϱ)X\cong\mathcal{M}_\vartheta(Q,\varrho)

for the weight ϑWt(Q)\vartheta\in\operatorname{Wt}(Q) satisfying ϑi>0\vartheta_i>0 for i0i\neq 0, and for which the tautological bundle

0irLi\bigoplus_{0\leq i\leq r}L_i

is tilting, giving the derived equivalences stated in the source. This conjecture is motivated by constructions of tilting bundles on smooth toric Fano threefolds and fourfolds; the source does not provide a resolution status, so its general validity remains open.

Sources & referencesView supporting material

Primary source

Alastair Craw, “Quiver representations in toric geometry”, arXiv:0807.2191 (2008).

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.