Talk:Casimir goes to Casimir

This article was nominated for deletion on 5 Nov 2007. The result of the discussion was redirect to Casimir invariant.

Any element in $U(\mathfrak{g})$ commutes with $f$ by definition. What makes the Casimir operator special? SL(2,R) 01:36, 22 July 2007 (UTC)

Don't ask me about notation!