Timeline for how to determine a biquadratic form is positive-definite
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 14, 2015 at 14:53 | comment | added | Thomas Richard | Can you clarify the definition of $B$ ? In your definition, $i$ and $j$ are already used. | |
| Jul 14, 2015 at 14:48 | comment | added | Noah Stein | Anyone care to explain the votes to close? | |
| Jul 14, 2015 at 14:48 | answer | added | Noah Stein | timeline score: 4 | |
| Jul 14, 2015 at 13:56 | comment | added | Surb | I'm not sure if it can help, but note that if $f(a,b,c,d)$ is the multilinear form associated to the tensor $[b_{i,j,k,l}]\in\Bbb R^{m\times m \times s \times s}$ then your are trying to determine when $f(x,x,y,y)$ is positive definite. | |
| Jul 14, 2015 at 13:24 | review | Close votes | |||
| Jul 14, 2015 at 18:27 | |||||
| Jul 14, 2015 at 12:37 | review | First posts | |||
| Jul 14, 2015 at 13:57 | |||||
| Jul 14, 2015 at 12:35 | history | asked | snow | CC BY-SA 3.0 |