Talk:Darboux derivative

History?
I may be mistaken, but is this really due to Darboux? I know Cartan studies such things in his Groupes Finis... series. Of course, the standard of referencing was somewhat lower in those days. Can anyone track down the original paper? I tried some time ago, but the trail ended with Cartan. Silly rabbit 20:58, 1 June 2007 (UTC)

Definition of Maurer-Cartan Form
I'm certainly not an expert on this, but it seems like $$T_g L_g$$ would be a map $$T_g G \to T_{g^2} G$$ with the definitions given. Shouldn't there be an inverse in there somewhere? --Dan131m (talk) 02:28, 29 March 2013 (UTC)

I think it should be $$T_e L_g$$. That's a map $$T_e G \to T_g G$$, so that its inverse is a map $$T_g G \to T_e G = \mathfrak{g}$$ as required. — Preceding unsigned comment added by 147.251.224.79 (talk) 11:12, 7 January 2014 (UTC)