  For any good tilting module $T$ over a ring $A$, there exists an
$n$-symmetric subcategory $\mathscr{E}$ of a module category such that the
derived category of the endomorphism ring of $T$ is a recollement of the
derived categories of $\mathscr{E}$ and $A$ in the sense of
Beilinson-Bernstein-Deligne. Thus the kernel of the total left-derived tensor
functor induced by the tilting module is triangle equivalent to the derived
category of $\mathscr{E}$.
