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OWR: Universal central extensions of gauge groups
Universal central extensions gauge groups
2011/3/1
We indicate how to calculate the universal central extension of the gauge algebra (ad(P)), and how to obtain from this the corresponding universal central extension of the gauge group И...
Universal central extensions of twisted forms of split simple Lie algebras over rings
Universal central extensions Lie algebras
2010/11/23
We give sufficient conditions for the descent construction to be the universal central extension of a twisted form of a split simple Lie algebra over a ring. In particular, the universal central exten...