Support $\tau$-tilting modules and recollements

Abstract

Let $(\mbox{mod} \Lambda',\mbox{mod} \Lambda,\mbox{mod} \Lambda'')$ be a recollement of abelian categories for artin algebras $\Lambda'$, $\Lambda$ and $\Lambda''$. Under certain conditions, we present an explicit construction of gluing of (support) $\tau$-tilting modules in $\mbox{mod} \Lambda$ with respect to (support) $\tau$-tilting modules in $\mbox{mod} \Lambda'$ and $\mbox{mod} \Lambda''$ respectively; conversely, we study the construction of (support) $\tau$-tilting modules in $\mbox{mod} \Lambda'$ and $\mbox{mod} \Lambda''$ obtained from (support) $\tau$-tilting modules in $\mbox{mod} \Lambda$.