The centroid of extended affine and root graded Lie algebras
We develop general results on centroids of Lie algebras and
apply them to determine the centroid of extended affine Lie algebras,
loop-like and Kac-Moody Lie algebras, and Lie algebras graded by
finite root systems.
G. Benkart < benkart@math.wisc.edu >
E. Neher < neher@uottawa.ca >