The Stacks project

Lemma 29.15.6. Let $f : X \to S$ be a morphism. If $S$ is (locally) Noetherian and $f$ (locally) of finite type then $X$ is (locally) Noetherian.

Proof. This follows immediately from the fact that a ring of finite type over a Noetherian ring is Noetherian, see Algebra, Lemma 10.31.1. (Also: use the fact that the source of a quasi-compact morphism with quasi-compact target is quasi-compact.) $\square$


Comments (2)

Comment #5043 by Taro konno on

I would like to propose that the statement of this lemma be changed to the following : Let be (locally) Noetherian scheme and be arbitrary scheme. If there exists a morphism (locally) of finite ,then is (locally) Noetherian.

Comment #5268 by on

@#5043: What would be the reason for that?

There are also:

  • 2 comment(s) on Section 29.15: Morphisms of finite type

Post a comment

Your email address will not be published. Required fields are marked.

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).

Unfortunately JavaScript is disabled in your browser, so the comment preview function will not work.

All contributions are licensed under the GNU Free Documentation License.




In order to prevent bots from posting comments, we would like you to prove that you are human. You can do this by filling in the name of the current tag in the following input field. As a reminder, this is tag 01T6. Beware of the difference between the letter 'O' and the digit '0'.