Timeline for Invariant factors and commuting matrices over a discrete valuation ring
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Dec 9, 2023 at 1:27 | history | edited | LSpice | CC BY-SA 4.0 |
TeX tidying; link to comments
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| Dec 8, 2023 at 21:54 | history | edited | Sylvain Brochard | CC BY-SA 4.0 |
added 792 characters in body
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| Dec 8, 2023 at 21:46 | comment | added | Sylvain Brochard | Yes. I will edit the question to add a proof of this fact. | |
| Dec 8, 2023 at 19:24 | comment | added | Luc Guyot | If the desired result holds true, then the rank of the matrix $(X^T Y^T) \in M_{2n, n}(A)$ (the dimension of the image over the fraction field of $A$) is $n$ whenever the rank of the matrix $(XY)$ is $n$. Does it follow easily from the hypothesis $XY = YX$? | |
| S Dec 7, 2023 at 23:26 | review | First questions | |||
| Dec 8, 2023 at 9:02 | |||||
| S Dec 7, 2023 at 23:26 | history | asked | Sylvain Brochard | CC BY-SA 4.0 |