Timeline for enlarge the separation between two matrices
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 7, 2011 at 9:30 | vote | accept | Federico Poloni | ||
| Apr 6, 2011 at 8:11 | answer | added | Suvrit | timeline score: 3 | |
| Apr 6, 2011 at 2:16 | comment | added | Dylan Thurston | I don't know anything about separation of matrices, but the eigenvalues of $kU$ can be much closer to the eigenvalues of $S$ than the eigenvalues of $U$ with your assumptions. Eg, for some small $\epsilon$, you could have $S$ with an eigenvalue at $i - \epsilon$, $U$ with an eigenvalue at $(i + \epsilon)/2$, and $k=2$. This doesn't seem to fit your intuition. Am I misunderstanding what a "stable matrix" is? | |
| Apr 5, 2011 at 18:21 | history | asked | Federico Poloni | CC BY-SA 2.5 |