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Hi. What is SU(1,1) ? Is it special unitary group ? -- Adam majewski ( talk) 18:13, 3 April 2016 (UTC)
- Yes, special, unitary, the noncompact brother of SU(2), cf.. See, e.g., Special unitary group #Generalized special unitary group. It has the same Lie Algebra as SU(2), with a few flips in the signs of its structure constants. Cuzkatzimhut ( talk) 22:08, 3 April 2016 (UTC)