Timeline for Is the mapping $F(a):= \arg\min_{x \in \mathbb R^n} \|x-a\|_2 + \|x\|_1$ non-expansive?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 9, 2023 at 9:33 | comment | added | Dirk | No, I don't. I've seen the question but don't know anything in this direction… I even did not know this characterization via second differences. | |
| Mar 9, 2023 at 0:57 | comment | added | Piotr Hajlasz | Do you know the answer to my question mathoverflow.net/q/434486/121665 ? You have many posts in convex analysis so I hope you might have some answers. | |
| Oct 13, 2022 at 11:14 | vote | accept | dohmatob | ||
| Oct 13, 2022 at 11:14 | comment | added | dohmatob | Indeed, Indeed I should have checked before... | |
| Oct 13, 2022 at 10:37 | history | answered | Dirk | CC BY-SA 4.0 |