Skip to main content
4 events
when toggle format what by license comment
Jul 20, 2021 at 21:48 vote accept LAGC
Jun 16, 2021 at 7:10 comment added Laurent Moret-Bailly @LAGC Not unless $Y$ is assumed separated. If, say, $x$ is a (nonisolated) closed point of $X$, with complement $U$, and $Y$ is the union of two copies of $X$ glued alog $U$, then the natural embeddings $X\hookrightarrow Y$ have nonclosed images.
Jun 16, 2021 at 4:41 comment added LAGC Does assuming that $Y$ is a scheme in my original question change the answer?
Jun 16, 2021 at 4:02 history answered David Benjamin Lim CC BY-SA 4.0