Almost Split Triangles and Morphisms Determined by Objects in Extriangulated Categories

Tiwei Zhao, Lingling Tan, Zhaoyong Huang

Let $(\mathfrak{C},\mathbb{E},\mathfrak{s})$ be an Ext-finite, Krull-Schmidt and $k$-linear extriangulated category with $k$ a commutative artinian ring. We define an additive subc…