Timeline for Sherman-Morrison type formula for Moore-Penrose pseudoinverse
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 14, 2023 at 23:02 | answer | added | Giacomo Petrillo | timeline score: 1 | |
| Nov 26, 2021 at 19:01 | comment | added | adam W | @trenta3 one post of mine that talks about psuedo inverse and span: math.stackexchange.com/a/317053/43193, just look for the section proof | |
| Nov 26, 2021 at 7:52 | comment | added | trenta3 | @adamW Thank you very much! I'll have a look at your posts then | |
| Nov 24, 2021 at 16:30 | comment | added | adam W | @trenta3 I remember I might have some perinent posts on my math.stackexchange. I haven't posted too terribly much so it may be of use to you to look. Otherwise, if I think of what I was talking about here, I may be able to explain better later. no source-- I think I was doing it on my own really | |
| Nov 24, 2021 at 10:35 | comment | added | trenta3 | @adamW Can you provide a reference or a line of reasonment for the fact that the Sherman-Morrison formula applies to the pseudoinverse in case of both $A$ and the update being symmetric? I'm in the need of such a formula, but I have not found some clear reference to such a statement yet. | |
| Jan 12, 2021 at 13:48 | history | edited | YCor | CC BY-SA 4.0 |
removed capitals from title (the question was bumped anyway)
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| Feb 28, 2014 at 12:47 | history | edited | j.c. |
edited tags
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| Feb 27, 2014 at 23:32 | answer | added | pdmclean | timeline score: 2 | |
| Feb 27, 2014 at 23:11 | answer | added | Felix Goldberg | timeline score: 16 | |
| Nov 15, 2013 at 10:17 | answer | added | Rajesh | timeline score: 4 | |
| Nov 4, 2013 at 6:38 | comment | added | adam W | If $\mathbf A$ is symmetric and so is the update to it, then I get that the Sherman-Morrison formula works as is (replacing inverse with pseudo-inverse of course). Otherwise, if I am correct, the formula gives you only a general inverse, and correction using the null space is required to make it the desired pseudo-inverse. | |
| Nov 3, 2013 at 18:38 | comment | added | Suvrit | Have a look at Mikael's answer at: mathoverflow.net/questions/72059/… | |
| Nov 3, 2013 at 18:37 | history | asked | Federico Magallanez | CC BY-SA 3.0 |