Timeline for morphism between projective spaces
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Sep 3, 2013 at 11:12 | comment | added | Dan Petersen | The following statement is very false: "If $f \colon X \to Y$ is surjective, $f^\ast \colon H^\ast(Y) \hookrightarrow H^\ast(X)$ is injective". Consider $Y$ a nodal cubic and $X$ its normalization. | |
| Jun 25, 2013 at 15:12 | history | edited | Alicia Garcia-Raboso | CC BY-SA 3.0 |
Fixed LaTeX: changed asterisks to \ast
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| Jun 22, 2013 at 16:10 | comment | added | user19475 | Why has this been downvoted? | |
| Jun 22, 2013 at 13:13 | history | edited | user19475 | CC BY-SA 3.0 |
added 48 characters in body
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| Jun 22, 2013 at 13:05 | history | edited | user19475 | CC BY-SA 3.0 |
added 567 characters in body; added 90 characters in body
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| Jun 22, 2013 at 12:45 | history | answered | user19475 | CC BY-SA 3.0 |