next | previous | forward | backward | up | top | index | toc | Macaulay2 web site
GradedLieAlgebras :: diffLie

diffLie -- the derivation defined by the differential

Synopsis

Description

If the current Lie algebra has no differential, then 0 is returned.

i1 : L=lieAlgebra({a,b},genSigns=>{1,0},genWeights=>{{2,0},{2,1}},diffl=>true)

o1 = L

o1 : LieAlgebra
i2 : L.genDiffs={L.zz,a}

o2 = {0, a}

o2 : List
i3 : d=diffLie()

o3 = d

o3 : DerLie
i4 : d b b a

o4 = (3/2)(b a a)

o4 : L

See also