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

centreLie -- computes the central elements

Synopsis

Description

i1 : L = lieAlgebra({a,b,c},{[a,b],[a,c], [c,b,c],[b,b,c,b]})

o1 = L

o1 : LieAlgebra
i2 : centreLie 1

o2 = {[a]}

o2 : List
i3 : centreLie 2

o3 = {}

o3 : List
i4 : centreLie L

o4 = {[a]}

o4 : List
i5 : L.compdeg

o5 = 3
i6 : computeLie 4

o6 = {3, 1, 1, 0}

o6 : List
i7 : centreLie L

o7 = {[a], [b, c, b]}

o7 : List

See also

Ways to use centreLie :