Timeline for Ideals invariant under ring automorphisms
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 15, 2018 at 23:27 | history | edited | HenrikRüping | CC BY-SA 4.0 |
added 16 characters in body
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| Dec 15, 2018 at 21:42 | answer | added | Hailong Dao | timeline score: 4 | |
| Dec 15, 2018 at 17:22 | vote | accept | HenrikRüping | ||
| Dec 15, 2018 at 17:01 | answer | added | David E Speyer | timeline score: 5 | |
| Dec 15, 2018 at 16:32 | comment | added | HenrikRüping | Yes indeed. Thanks to you both. I mixed up things quite a lot. I was also thinking about this question only with the action that flips $x$ and $y$ and not the entire $sl_2$-action. Then I mixed things up sorry. | |
| Dec 15, 2018 at 16:32 | history | edited | HenrikRüping | CC BY-SA 4.0 |
corrected things.
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| Dec 15, 2018 at 16:20 | comment | added | Hailong Dao | Hi, why is $x^3,y^3$ invariant? | |
| Dec 15, 2018 at 16:20 | comment | added | YCor | The ideal $(x^n,y^n)$ is invariant iff $n$ is a power of 2, isn't it? | |
| Dec 15, 2018 at 16:16 | history | edited | YCor | CC BY-SA 4.0 |
added 5 characters in body; edited tags
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| Dec 15, 2018 at 15:16 | history | asked | HenrikRüping | CC BY-SA 4.0 |