Timeline for When is a monic integer polynomial the characteristic polynomial of a non-negative integer matrix?
Current License: CC BY-SA 4.0
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| Nov 22, 2021 at 1:52 | history | edited | David Roberts♦ | CC BY-SA 4.0 |
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| Dec 10, 2010 at 0:13 | comment | added | Sunni | I am curious with a question ,it has not been replied in the above discussion. When is a monic polynomial a characteristic polynomial of a nonnegative matrix. | |
| Nov 3, 2009 at 15:16 | history | edited | Ben Webster♦ | CC BY-SA 2.5 |
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| Nov 3, 2009 at 15:15 | comment | added | Ben Webster♦ | Oh, sorry, I missed the non-negative part. I was wondering why you had asked such an easy question. | |
| Nov 3, 2009 at 15:10 | comment | added | Qiaochu Yuan | Yes, but the coefficients of the companion matrix aren't necessarily non-negative. | |
| Nov 3, 2009 at 15:06 | history | answered | Ben Webster♦ | CC BY-SA 2.5 |