

01:06:22
publiée le 4 juin 2025
Frieze patterns from a geometric point of view: projective geometry and difference equations
De Valentin Ovsienko
De Osamu Iyama
Apparaît dans les collections : Cluster algebras: twenty years on / Vingt ans d'algèbres amassées, Exposés de recherche
The preprojective algebra $P$ of a quiver $Q$ has a family of ideals $I_w$ parametrized by elements $w$ in the Coxeter group $W$. For the factor algebra $P_w = P/I_w$, I will discuss tilting and cluster tilting theory for Cohen-Macaulay $P_w$-modules following works by Buan-I-Reiten-Scott, Amiot-Reiten-Todorov and Yuta Kimura.