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Dec 7, 2020 at 6:54 comment added mathoverflowUser @MattF. The $\phi$ is the Cholesky vector $\phi(g)$ corresponding to a group element $g$
Jun 8, 2020 at 7:52 comment added user44143 What is $\phi$?
Jun 8, 2020 at 6:12 history edited user6671
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Jun 8, 2020 at 6:05 history edited user6671 CC BY-SA 4.0
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Jun 7, 2020 at 17:24 comment added user6671 @LSpice it is used a similar construction. I changed the definition of $X$, since in the previous question the matrix $M$ was the identity matrix for the Cayley embedding
Jun 7, 2020 at 16:59 comment added LSpice A related question by the poster, at least in the sense that it uses the same construction: mathoverflow.net/questions/362363/… . (Here as there, I ask the same question about to what extent these questions rely on the choice of permutation representation of $G$.)
Jun 7, 2020 at 16:45 history edited user6671 CC BY-SA 4.0
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Jun 7, 2020 at 12:59 history edited user6671 CC BY-SA 4.0
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Jun 7, 2020 at 9:58 history asked user6671 CC BY-SA 4.0