$g$-vector fans and picture categories for 0-Auslander extriangulated categories

Erlend D. Børve, Maximilian Kaipel

We extend the notion of $\mathbf{g}$-vector fan so that it is defined for a Hom-finite Krull-Schmidt 0-Auslander $k$-linear extriangulated category $\mathcal{C}$ with a projective…