Timeline for Showing a matrix is negative definite [formerly Showing a sum is always positive]
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 28, 2010 at 22:15 | comment | added | Bjorn Poonen | (At the time it was buried under so many other comments that I missed it.) | |
| Mar 28, 2010 at 22:14 | comment | added | Bjorn Poonen | I just noticed that David Speyer suggested the same approach as mine in the comments, a few hours before I posted my answer. | |
| Mar 28, 2010 at 20:46 | history | answered | Bjorn Poonen | CC BY-SA 2.5 |