Adjoint ideals along closed subvarieties of higher codimension

Understand

In this paper, we introduce a notion of adjoint ideal sheaves along closed subvarieties of higher codimension and study its local properties using characteristic $p$ methods.

• When $X$ is a normal Gorenstein closed subvariety of a smooth complex variety $A$, we formulate a restriction property of the adjoint ideal sheaf $\adj_X(A)$ of $A$ along $X$ involving the l.c.i.
• ideal sheaf $\mathcal{D}_X$ of $X$.
• The proof relies on a modification of generalized test ideals of Hara and Yoshida.