A direct method for the determination of the Iwasawa decomposition of any noncompact semisimple real Lie algebra is described in detail. It is based on the canonical form of the Lie algebra. The physically important Lie algebras so (3,1), so (4,1), so (3,2), and so (4,2) are treated as illustrative examples.
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© 1975 American Institute of Physics.
1975
American Institute of Physics
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