The bijection between cluster-tilting objects and d-angulations

From papers

Let (S,M,D)(S,M,D) be a dd-angulation of a marked surface, let (Q,W)(Q,W) be its associated quiver with superpotential, and let Γ\Gamma be the associated dd-dimensional Ginzburg algebra. Define the generalized higher cluster category

CΓ:=per(Γ)/pvd(Γ)\mathscr{C}_{\Gamma}:=\operatorname{per}(\Gamma)/\operatorname{pvd}(\Gamma)

and let π:per(Γ)CΓ\pi:\operatorname{per}(\Gamma)\to\mathscr{C}_{\Gamma} be the projection functor. Let CC be the set of all (d2)(d-2)-cluster tilting objects obtained by finite mutations of π(Γ)\pi(\Gamma), and let CC' be the set of all dd-angulations obtained by finite flips of (S,M,D)(S,M,D). Bijection conjecture. There is a bijection between CC and CC' which sends π(Γ)\pi(\Gamma) to (S,M,D)(S,M,D). This would identify finite mutations of the cluster-tilting object with finite flips of the associated dd-angulation, extending the geometric model from the initial objects to their mutation and flip classes.

Progress summary

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

Sources & referencesView supporting material

Primary source

Bo Le and Bin Zhu, “The quiver with superpotentials of a d-angulation of a marked surface”, arXiv:2501.00435 (2025).

Solutions 0

No solutions have been posted yet.