[GAP Forum] Casimir Invariants of Lie Algebras
Willem De Graaf
degraaf at science.unitn.it
Wed Apr 19 16:29:10 BST 2006
Dear R.N. Tsai,
Unfortunately in GAP there is no algorithm implemented
to find the centre of a universal enveloping algebra of a
split semisimple Lie algebra. The only algorithm that
I know for this purpose constructs a set of linear equations
for the generators of the centre. However, for all but a few
small cases that is very inefficient, as the number of
equations quickly becomes huge.
Sorry for not being able to help more.
Willem de Graaf
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