Timeline for Is the componentwise square-root of a positive-definite matrix also pos.-def.?
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
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| Jan 21, 2011 at 14:12 | comment | added | Christian Stahlhut | Thank you very much for your quick answer! This is just the counterexample I need. | |
| Jan 21, 2011 at 14:08 | vote | accept | Christian Stahlhut | ||
| Jan 21, 2011 at 14:05 | vote | accept | Christian Stahlhut | ||
| Jan 21, 2011 at 14:05 | |||||
| Jan 20, 2011 at 16:38 | history | edited | darij grinberg | CC BY-SA 2.5 |
thanks Willie
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| Jan 20, 2011 at 16:31 | comment | added | Willie Wong | you probably should also specify that the one you wrote down is $B$, the "square root" matrix for clarity's sake. | |
| Jan 20, 2011 at 16:29 | comment | added | Willie Wong | ah, you beat me to typing it up. (btw, I think the pmatrix environment works here, so you don't have to type up the full array.) | |
| Jan 20, 2011 at 16:17 | history | answered | darij grinberg | CC BY-SA 2.5 |