The stable brick conjecture

Let AA be an algebra, and let θK0(projA)\theta\in K_0(\operatorname{proj} A). A module MmodAM\in\operatorname{mod} A is θ\theta-stable if θ(dimM)=0\theta(\underline{\dim}M)=0 and θ(dimN)<0\theta(\underline{\dim}N)<0 for every nonzero proper submodule NMN\subsetneq M. Stable brick conjecture. If AA admits an infinite family of bricks of the same dimension, then for some θK0(projA)\theta\in K_0(\operatorname{proj} A), there are infinitely many θ\theta-stable modules of the same dimension. The conjecture is known for all tame algebras and for algebras admitting a preprojective component in their Auslander-Reiten quiver, but remains open in general.

Sources & referencesView supporting material

Primary source

Kaveh Mousavand and Charles Paquette, “Hom-orthogonal modules and brick-Brauer-Thrall conjectures”, arXiv:2407.20877 (2025).

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.