https://maplesoft.com/support/help/Maple/view.aspx?path=DifferentialGeometry/LieAlgebras/Query/ReductivePair
ReductivePair - Maple Help
Query[ReductivePair] - check if a subalgebra, subspace pair defines a reductive pair in a Lie algebra Calling Sequences Query( S , M , ReductivePair ) Query( S...
maplehelp