Timeline for Is containment of images of linear maps Zariski closed?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 12, 2022 at 19:22 | vote | accept | Quizzical | ||
| Apr 11, 2022 at 20:57 | history | edited | Sam Hopkins | CC BY-SA 4.0 |
deleted 2 characters in body
|
| Apr 11, 2022 at 17:01 | answer | added | john | timeline score: 4 | |
| Apr 10, 2022 at 8:48 | history | became hot network question | |||
| Apr 10, 2022 at 1:27 | answer | added | Jason Starr | timeline score: 12 | |
| Apr 10, 2022 at 1:20 | comment | added | Quizzical | Ah, that is a good point. Thanks! If you add this as an answer, I can mark it as accepted. | |
| Apr 10, 2022 at 0:49 | comment | added | Jason Starr | That is not Zariski closed. Let $A$ be the identity $n\times n$ matrix and let $B$ be a diagonal matrix in which all diagonal entries except one equal $1$, and the last entry is a varying element $t$ in the affine line. For all $t\neq 0$, the corresponding pair is in your set, but for $t=0$ the pair is not in your set. | |
| Apr 10, 2022 at 0:40 | history | asked | Quizzical | CC BY-SA 4.0 |