Bijectivity of the silting-to-cluster-tilting map

Let (T,Tfd,M)({\mathcal T},{\mathcal T}^{\mathsf{fd}},{\mathcal M}) be the (d+1)(d+1)-Calabi--Yau triple from Corollary~(b), let C{\mathcal C} be the associated triangulated category, and let F{\mathcal F} be the fundamental domain used there. Write siltFT\operatorname{silt}\nolimits^{\mathcal F}{\mathcal T} for the silting subcategories of T{\mathcal T} contained in F{\mathcal F}, and write d\strut-ctiltC{\it d}\strut\kern-.2em\operatorname{-ctilt}\nolimits{\mathcal C} for the dd-cluster-tilting subcategories of C{\mathcal C}. The functor π ⁣:TC\pi\colon {\mathcal T}\to{\mathcal C} induces a map

π ⁣:siltFTd\strut-ctiltC.\pi\colon\operatorname{silt}\nolimits^{\mathcal F}{\mathcal T}\to{\it d}\strut\kern-.2em\operatorname{-ctilt}\nolimits{\mathcal C}.

Bijectivity conjecture. The map π ⁣:siltFTd\strut-ctiltC\pi\colon\operatorname{silt}\nolimits^{\mathcal F}{\mathcal T}\to{\it d}\strut\kern-.2em\operatorname{-ctilt}\nolimits{\mathcal C} is bijective for all d1d\geq 1.

The map is known to be bijective for d=1d=1 and d=2d=2; the conjecture asks whether this remains true for all higher values of dd.

Sources & referencesView supporting material

Primary source

Osamu Iyama and Dong Yang, “Silting reduction and Calabi–Yau reduction of triangulated categories”, arXiv:1408.2678 (2018).

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