The Ring of Invariants for Smooth Completions of Kac-Moody Lie Algebras
Ian Marshall, Tudor Ratiu
dg-gaarXiv:dg-ga/9503009
Abstract
It is proved that the ring of invariants of the standard smooth completion of a Kac-Moody Lie algebra is functionally generated by two elements: the coefficient of the center and the Killing form.
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