Timeline for Norm of matrix with randomly deleted entries
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Mar 26, 2015 at 2:36 | answer | added | RoyS | timeline score: 1 | |
| Mar 14, 2015 at 7:45 | comment | added | ttb | Thanks for this example. It seems that you can use the same argument for the identity matrix, and then you can conclude that $P(\|A\| = \|B\|)$ is going to be high for other matrix norms which specialize to the the largest absolute element on diagonal matrices. | |
| Mar 12, 2015 at 4:50 | comment | added | Christian Remling | I don't think you can say a whole lot for general $A$. For example, if there's a single column with $1$'s only and all other entries are zero, then $\|B\|=\|A\|$ with prob $1-(1-\rho)^n$, so the expectation doesn't go down by much. | |
| Mar 12, 2015 at 4:28 | history | asked | ttb | CC BY-SA 3.0 |