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Apr 13, 2017 at 12:58 history edited CommunityBot
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Jan 25, 2016 at 13:46 vote accept Olga
Jan 25, 2016 at 13:46 answer added Olga timeline score: 4
Jan 22, 2016 at 10:52 comment added Olga The condition $\mathrm{rk}([X,Y]+1)=1$ should still hold and by changing non-diagonal values of $Y$ like this I think we will get out of this condition. We can change both matrices by conjugating them by some matrix from $PGL_n(\mathbb{C})$. $X$ is diagonal. We would love to get $Y_{j k}$ as you write them but this is not possible to pass from a matrix [ M= \begin{bmatrix} p_1 & \frac{1}{x_1-x_2} \\ \frac{1}{x_2-x_1} & p_2 \end{bmatrix} ] to [ M= \begin{bmatrix} p_1 & \frac{i}{x_1-x_2} \\ \frac{i}{x_2-x_1} & p_2 \end{bmatrix} ] by (even complex) conjugacy
Jan 21, 2016 at 20:39 comment added BS. Hi Olga ! I think that even though the CM system is real, you can consider it coming from complex (hermitian) matrices, whose (real) eigenvalues should be the positions of the "particles". Hence it would be legit to take $Y_{jk}=\sqrt{-1}/(x_j-x_k)$... It's sometimes hard to guess something from its shadow!
Jan 21, 2016 at 20:33 history edited BS. CC BY-SA 3.0
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S Jan 21, 2016 at 20:12 history suggested jeq CC BY-SA 3.0
Corrected typo. Modified tags.
Jan 21, 2016 at 19:53 comment added AHusain What's wrong with the $i*x$ change of variables?
Jan 21, 2016 at 19:43 review Suggested edits
S Jan 21, 2016 at 20:12
Jan 21, 2016 at 17:40 history edited Olga CC BY-SA 3.0
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Jan 21, 2016 at 16:27 history asked Olga CC BY-SA 3.0