The Stacks project

Example 42.7.3. Here $S = \mathop{\mathrm{Spec}}(A)$, where $A$ is a Noetherian domain of dimension $1$. For example we could consider $A = \mathbf{Z}$. We set $\delta (\mathfrak p) = 0$ if $\mathfrak p$ is a maximal ideal and $\delta (\mathfrak p) = 1$ if $\mathfrak p = (0)$ corresponds to the generic point. This is an example of Situation 42.7.1 by Morphisms, Lemma 29.17.5.