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math.RT2026
Enumerating iterated tilted algebras in type
Alexander E. Black, Jonathan E. Gordon, Ray Maresca
We show that isoclasses of iterated tilted algebras in type are in bijection with non-crossing spanning trees up to rotation on a convex n+1-gon. This is done by constructing…
math.RT2026
Pseudo-torsion classes
Kiyoshi Igusa, Ray Maresca
For a finite dimensional algebra , we consider a torsion class in -, which is not necessarily finitely generated. We construct a wall-and-chamber structure for w…