The E-finiteness conjecture for finite-dimensional algebras
Let be a finite-dimensional algebra. Call -finite if, for every -regular irreducible component , one has . Call brick-finite if it has only finitely many isomorphism classes of bricks.
E-finiteness conjecture. If is -finite, then is brick-finite.
The conjecture reformulates a question of Demonet about the existence of rational rays outside the -tilting fan for brick-infinite algebras. It is stated as open and is described as widely believed.
References
Primary source
Kaveh Mousavand and Charles Paquette, “On the bricks (Schur representations) of finite dimensional algebras”, arXiv:2508.11789 (2025).
Progress summary
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.