Timeline for Is a basis that almost diagonalizes a matrix 'close' to its eigenbasis?
Current License: CC BY-SA 4.0
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| Feb 3, 2021 at 15:26 | comment | added | Christian Remling | Obviously, this isn't working if $A=1$, so you'll probably need a more quantitative assumption than non-degenerate eigenvalues (a bound on $\min |\lambda_j-\lambda_k|$). | |
| Feb 3, 2021 at 14:35 | history | edited | fsp-b |
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| Feb 3, 2021 at 14:20 | comment | added | Nathaniel Johnston | This Math.SE post seems relevant: math.stackexchange.com/questions/1133071/… In particular, the standard reference for this sort of thing is "Kato, T., Perturbation theory for linear operators. Springer-Verlag, 1976" | |
| Feb 3, 2021 at 14:15 | history | asked | fsp-b | CC BY-SA 4.0 |