Recollements associated to cotorsion pairs over upper triangular matrix rings

Rongmin Zhu, Yeyang Peng, Nanqing Ding

Let $A$, $B$ be two rings and $T=\left(\begin{array}{ccc}A& M0& B\end{array}\right)$ with $M$ an $A$-$B$-bimodule. Given two complete hereditary cotorsion pairs $(\math…