Yet another construction of the central extension of the loop groupReport as inadecuate



 Yet another construction of the central extension of the loop group


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We give a characterisation of central extensions of a Lie group G by the non-zero complex numbers in terms of a differential two-form on G and a differential one-form on GxG. This is applied to the case of the central extension of the loop group.



Author: Michael K. Murray; Daniel Stevenson

Source: https://archive.org/







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