Timeline for Hartshorne's proof of the birational invariance of the geometric genus
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Oct 2, 2019 at 7:08 | comment | added | schemer | Sorry, I didn’t realize that $ V $ was the largest set on which the morphism was defined. I thought it was the set where the morphism is an isomorphism. Thank you Zach. | |
| Oct 2, 2019 at 6:15 | history | edited | schemer | CC BY-SA 4.0 |
added 99 characters in body
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| Oct 2, 2019 at 3:26 | comment | added | Zach Teitler | The blowdown is defined on all of $X$, $V=X$. | |
| Oct 2, 2019 at 2:17 | history | edited | schemer | CC BY-SA 4.0 |
added 99 characters in body
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| Oct 2, 2019 at 2:07 | comment | added | schemer | To clarify, the result is correct, but the proof may have a mistake in it. | |
| Oct 1, 2019 at 7:04 | history | answered | schemer | CC BY-SA 4.0 |