Timeline for Show that the eigenvalues of a non-symmetric matrix built from positive matrices have positive real parts
Current License: CC BY-SA 4.0
17 events
| when toggle format | what | by | license | comment | |
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| Nov 10, 2021 at 11:25 | vote | accept | PAb | ||
| S Nov 10, 2021 at 11:24 | history | bounty ended | PAb | ||
| S Nov 10, 2021 at 11:24 | history | notice removed | PAb | ||
| Nov 8, 2021 at 14:09 | answer | added | Narutaka OZAWA | timeline score: 8 | |
| Nov 8, 2021 at 3:53 | answer | added | Narutaka OZAWA | timeline score: 5 | |
| Nov 5, 2021 at 12:38 | answer | added | Denis Serre | timeline score: 2 | |
| Nov 5, 2021 at 11:28 | comment | added | PAb | Thanks ! No I did not. However I think the relationship does not hold anymore when subtracting $\lambda Id$ from $M$, so the eigenvalues of $M$ are not those of $N$ and $A$. But maybe we can manage to use this identity to prove the expected result. | |
| Nov 5, 2021 at 10:58 | comment | added | Denis Serre | Did you notice the identity $\det M=\det A\det N$ ? | |
| Nov 5, 2021 at 2:13 | answer | added | Michael Renardy | timeline score: 2 | |
| Nov 4, 2021 at 16:22 | history | edited | PAb | CC BY-SA 4.0 |
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| S Nov 4, 2021 at 16:17 | history | bounty started | PAb | ||
| S Nov 4, 2021 at 16:17 | history | notice added | PAb | Draw attention | |
| Nov 4, 2021 at 1:21 | history | edited | PAb | CC BY-SA 4.0 |
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| Nov 3, 2021 at 13:29 | comment | added | PAb | Even when n = 1, I am at a loss to prove the result, the closed form expression for the eigenvalues is not informative wolframalpha.com/input/… | |
| Nov 3, 2021 at 13:27 | history | edited | PAb | CC BY-SA 4.0 |
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| Nov 2, 2021 at 17:09 | history | edited | PAb | CC BY-SA 4.0 |
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| Nov 2, 2021 at 15:57 | history | asked | PAb | CC BY-SA 4.0 |