Example 27.8.14. Let $A$ be a ring. Let $S = A[T]$ as a graded $A$ algebra with $T$ in degree $1$. Then the canonical morphism $\text{Proj}(S) \to \mathop{\mathrm{Spec}}(A)$ (see Lemma 27.8.10) is an isomorphism.

There are also:

• 8 comment(s) on Section 27.8: Proj of a graded ring

In your comment you can use Markdown and LaTeX style mathematics (enclose it like $\pi$). A preview option is available if you wish to see how it works out (just click on the eye in the toolbar).