Timeline for Does finite+reduced fibers+connected fibers imply isomorphism?
Current License: CC BY-SA 3.0
7 events
when toggle format | what | by | license | comment | |
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Nov 26, 2012 at 8:10 | comment | added | Damian Rössler | Also note that if you do not assume that $S$ is surjective, then any closed immersion gives a counterexample (Jason Starr's answer is a closed immersion but you can see that he assumed that you wanted the morphism to be surjective). | |
Nov 26, 2012 at 8:07 | comment | added | Damian Rössler | Note that this is true if $S$ is normal, by Zariski's main theorem. | |
Nov 25, 2012 at 21:39 | answer | added | Ray Hoobler | timeline score: 2 | |
Nov 25, 2012 at 16:36 | answer | added | Mohan | timeline score: 3 | |
Nov 25, 2012 at 1:57 | vote | accept | HNuer | ||
Nov 24, 2012 at 23:39 | answer | added | Jason Starr | timeline score: 9 | |
Nov 24, 2012 at 23:08 | history | asked | HNuer | CC BY-SA 3.0 |