Complete reducibility
introduction
- two approaches
- Weyl's unitarian trick
- Use Casimir operator
- Casimir exists because invariant symmetric non-degenerated bilinear form exists.
expositions
- Iachello, Francesco. “Casimir Operators and Their Eigenvalues.” In Lie Algebras and Applications, 63–74. Lecture Notes in Physics 708. Springer Berlin Heidelberg, 2006. http://link.springer.com.ezproxy.library.uq.edu.au/chapter/10.1007/3-540-36239-8_5.
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- ID : Q17037933