Timeline for Can a cubic polynomial in two real variables have exactly three isolated critical points?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 30, 2023 at 12:41 | audit | Close votes | |||
| May 30, 2023 at 17:34 | |||||
| May 16, 2023 at 8:44 | vote | accept | Pavel Kocourek | ||
| May 15, 2023 at 21:29 | answer | added | cs89 | timeline score: 4 | |
| May 15, 2023 at 19:36 | comment | added | Pavel Kocourek | @Medo Thanks for the comment, I meant Isolated critical points. I just clarified it. | |
| May 15, 2023 at 19:35 | history | edited | Pavel Kocourek | CC BY-SA 4.0 |
added 9 characters in body
|
| May 15, 2023 at 19:12 | comment | added | Medo | I don't understand how a cubic polynomial (in two variables) has at most 4 critical points. Take $f(x,y):=(x-y)^3$. Then $f$ is critical on the line $x=y$. | |
| May 15, 2023 at 18:48 | history | asked | Pavel Kocourek | CC BY-SA 4.0 |