Timeline for Closed-form expression for differential of matrix function
Current License: CC BY-SA 3.0
16 events
| when toggle format | what | by | license | comment | |
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| Jan 9, 2018 at 21:46 | vote | accept | Ludwig | ||
| Jan 1, 2018 at 14:08 | history | edited | Ludwig | CC BY-SA 3.0 |
Added clarification.
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| Jan 1, 2018 at 10:59 | history | edited | Ludwig | CC BY-SA 3.0 |
edited body
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| Dec 31, 2017 at 13:38 | history | edited | Ludwig | CC BY-SA 3.0 |
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| Dec 31, 2017 at 12:45 | answer | added | Peter Michor | timeline score: 4 | |
| Dec 31, 2017 at 10:00 | history | edited | Ludwig | CC BY-SA 3.0 |
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| Dec 31, 2017 at 9:04 | comment | added | Ludwig | @IgorRivin: I edited the OP in order to deal with a well-defined $Y$. | |
| Dec 31, 2017 at 9:01 | history | edited | Ludwig | CC BY-SA 3.0 |
Edited initial assumption
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| Dec 30, 2017 at 17:54 | comment | added | Igor Rivin | Since multiplying $Y$ on the left by an orthogonal matrix gives you another $Y,$ I still don't know what you mean... | |
| Dec 30, 2017 at 17:35 | comment | added | Ludwig | @IgorRivin: According to the accepted answer to this MO question mathoverflow.net/questions/150427/…, I think that the (classical notion of) differential of $Y$ w.r.t. $X$ is well-defined under certain assumption concerning invertibility of $(I\otimes Y^\top)$. See also my edit. | |
| Dec 30, 2017 at 17:31 | history | edited | Ludwig | CC BY-SA 3.0 |
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| Dec 30, 2017 at 17:14 | history | edited | Ludwig | CC BY-SA 3.0 |
Added attempt of solution.
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| Dec 28, 2017 at 18:35 | comment | added | Igor Rivin | Since $Y$ is not well-defined, what exactly do you mean by its differential? | |
| Dec 28, 2017 at 16:54 | history | edited | Ludwig | CC BY-SA 3.0 |
added 17 characters in body
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| Dec 28, 2017 at 15:40 | history | edited | Ludwig | CC BY-SA 3.0 |
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| Dec 28, 2017 at 15:18 | history | asked | Ludwig | CC BY-SA 3.0 |