Timeline for Matrix inversion lemma with pseudoinverses
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 5, 2011 at 23:13 | comment | added | Suvrit | @Michael: expand $\cos(x-y)=\cos x\cos y + \sin x \sin y$ to notice that $A$ is a sum of three rank-1 matrices. | |
| Aug 5, 2011 at 21:22 | comment | added | Michael Hardy | Why can the rank never exceed 3? | |
| Aug 4, 2011 at 16:08 | comment | added | Suvrit | Actually, I suspected it to be true as long as all the $x$'s were such that their contribution remains independent of $ee^T$ (Mikael makes this explicit in the answer below) | |
| Aug 4, 2011 at 16:05 | vote | accept | Suvrit | ||
| Aug 4, 2011 at 8:41 | answer | added | Mikael de la Salle | timeline score: 13 | |
| Aug 4, 2011 at 4:13 | comment | added | Michael Hardy | If you just let $x_1,\dots,x_n$ be distinct scalars instead of specifying a particular probability distribution, shouldn't you get the same result? | |
| Aug 4, 2011 at 2:08 | history | asked | Suvrit | CC BY-SA 3.0 |