Timeline for Characterizing space that preserves positive-definiteness property
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 6, 2014 at 3:42 | vote | accept | A Nejati | ||
| Nov 26, 2014 at 0:25 | answer | added | loup blanc | timeline score: 2 | |
| Nov 13, 2014 at 21:14 | comment | added | A Nejati | So I suppose you're suggesting to look at the leading principal minors? | |
| Nov 13, 2014 at 4:32 | comment | added | percusse | With a Schur complement formula argument you can switch to positive definiteness of $$\begin{bmatrix}\Sigma&D\\D&\Sigma\end{bmatrix}$$ and then from block matrix determinant argument you can investigate connectedness of $$\det(\Sigma-D)\det(\Sigma+D)$$ | |
| Nov 13, 2014 at 4:13 | review | First posts | |||
| Nov 13, 2014 at 4:19 | |||||
| Nov 13, 2014 at 4:13 | history | asked | A Nejati | CC BY-SA 3.0 |