Timeline for A surjective morphism of abelian varieties induces an epimorphism on the torsion subgroups
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Apr 17, 2017 at 7:13 | comment | added | R. van Dobben de Bruyn | Whenever you say 'epimorphism', you should say in which category, and you should think about whether it's actually equivalent to surjectivity (there are many cases where it's not, e.g. rings, topological spaces, schemes, ...). | |
| Apr 6, 2017 at 11:28 | comment | added | Francesco Polizzi | Personally, I prefer surjective group homomorphism | |
| Apr 6, 2017 at 11:24 | comment | added | user107042 | Maybe I should say that $f$ is an epimorphism. Right? | |
| Apr 6, 2017 at 11:11 | comment | added | Francesco Polizzi | You are assuming that $f$ is a group homomorphism, right? Otherwise, taking a translation $\tau_x \colon A \to A$ by a point $x$ of infinite order, no torsion point can go into a torsion point. | |
| Apr 6, 2017 at 9:36 | history | edited | Francesco Polizzi | CC BY-SA 3.0 |
added 16 characters in body
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| Apr 6, 2017 at 8:41 | answer | added | Francesco Polizzi | timeline score: 5 | |
| Apr 6, 2017 at 7:37 | history | edited | user107042 | CC BY-SA 3.0 |
edited body
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| Apr 6, 2017 at 7:34 | review | First posts | |||
| Apr 6, 2017 at 7:34 | |||||
| Apr 6, 2017 at 7:31 | history | asked | user107042 | CC BY-SA 3.0 |