Notes for AKT-091001-2/0:28:08

From Drorbn
Jump to: navigation, search

A metric of a Lie-algebra is a nondegenerate symmetric bilinear form < \cdot, \cdot >: \mathcal{G} \otimes \mathcal{G} \rightarrow \mathbb{Q} s.t. <[z,x], y> + <x, [z,y]> = 0