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

- DerLie -- Unary negation of Lie derivations

Synopsis

Description

The symbol - is used as notation for the negation of Lie derivations.

i1 : L = lieAlgebra{a,b}

o1 = L

o1 : LieAlgebra
i2 : d = derLie{a a b,b b a}

o2 = d

o2 : DerLie
i3 : peekLie(-d)

o3 = a => (a b a)
     b =>  - (b b a)
     maplie => id
     sign => 0
     weight => {2, 0}
     sourceLie => L
     targetLie => L