|May14-12, 01:03 PM||#1|
Lie Algebras Question ?
the commutator in the Baker-Campbell-Hausdorff formula must be proportional to some linear
combination of the generators of the group (because of closure)
The constants of proportionality are called the Structure Constants
of the group, and if they are completely known, the commutation relations between
all the generators are known, and so the entire group can be determined in any
representation you want.
I want to understand this?
|May16-12, 05:00 AM||#2|
Try Greiner & Muller "QM -- Symmetries" for a physicist-friendly introduction. Or maybe even Ballentine's "QM -- A Modern Development".
[Maybe this thread belongs in the group theory forum?]
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