Timeline for when does elementwise-log preserve positive-semidefiniteness?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 20, 2015 at 12:33 | comment | added | guigux | Very nice, his is exactly the kind of criterion I was looking for ! | |
| Aug 20, 2015 at 12:32 | vote | accept | guigux | ||
| Aug 19, 2015 at 18:20 | history | edited | Robert Israel | CC BY-SA 3.0 |
added 466 characters in body
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| Aug 19, 2015 at 9:29 | comment | added | guigux | Thank you, this is a very enlightening answer. But now the question is: How do I recognize if a positive definite matrix $Z$ is small enough (so that $X\succeq 0$)? Maybe we can find a criterion relying on the eigenvalues of $Z$ ? | |
| Aug 18, 2015 at 18:56 | history | answered | Robert Israel | CC BY-SA 3.0 |