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GradedLieAlgebras :: ExtElement ExtElement

ExtElement ExtElement -- multiplication of Ext-algebra elements

Synopsis

Description

SPACE is used as infix notation for the Ext-algebra multiplication, which is graded commutative.

i1 : L = lieAlgebra{a,b,c}/{a b,b c}

o1 = L

o1 : LieAlgebra
i2 : E = extAlgebra(3,L)

o2 = E

o2 : ExtAlgebra
i3 : (ext_1+2 ext_0) ext_2

o3 =  - ext_3

o3 : E

See also