adjoint {onion} | R Documentation |
The adjoint \(\mathrm{ad}_X\) of \(X\) is a map from a Lie group \(G\) to the endomorphism group of \(G\) defined by
\[\mathrm{ad}_X(Y)=\left[X,Y\right]\]ad(x)
x |
Object nominally of class |
Here for completeness really.
Robin K. S. Hankin
x <- rquat()
y <- rquat()
f <- ad(x)
f(y)
f(f(y)) # [x,[x,y]]