Intersection of complete cotorsion pairs

Qikai Wang, Haiyan Zhu

Given two (hereditary) complete cotorsion pairs $({\mathcal{X}}_1,{\mathcal{Y}}_1)$ and $({\mathcal{X}}_2,{\mathcal{Y}}_2)$ in an exact category with ${\mathcal{X}}_1\subseteq {\mathcal{Y}}_2$…