Timeline for Which polynomials are determinants of a symmetric matrix with linear entries?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Oct 12, 2011 at 21:38 | vote | accept | Wanderer | ||
| Sep 12, 2011 at 2:07 | answer | added | David E Speyer | timeline score: 10 | |
| Sep 12, 2011 at 1:52 | comment | added | David E Speyer |
Although you can get $−1−t^2$; it's $\det \left( \begin{smallmatrix} 1 & t \\ t & -1 \end{smallmatrix} \right)$
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| Sep 12, 2011 at 1:43 | comment | added | Alison Miller | Do you care about the case of polynomials of degree $<n$? | |
| Sep 12, 2011 at 1:21 | comment | added | Robert Israel | For $n=2$ and field $\mathbb R$, you can't get $1 + t^2$ | |
| Sep 12, 2011 at 1:14 | answer | added | Andreas Thom | timeline score: 4 | |
| Sep 12, 2011 at 0:54 | answer | added | Alison Miller | timeline score: 5 | |
| Sep 11, 2011 at 21:23 | comment | added | Wanderer | This has something to do with quadratic forms, of course. | |
| Sep 11, 2011 at 21:09 | comment | added | Wanderer | Sorry, I forgot to mention the matrices should be symmetric. | |
| Sep 11, 2011 at 21:08 | history | edited | Wanderer | CC BY-SA 3.0 |
added 12 characters in body; edited title
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| Sep 11, 2011 at 21:04 | comment | added | David Loeffler | en.wikipedia.org/wiki/Companion_matrix | |
| Sep 11, 2011 at 21:00 | history | asked | Wanderer | CC BY-SA 3.0 |