Degree operator
Adjoining the degree derivation
Let be a -Graded Lie algebra over with a submonoid,
so that we may define the degree derivation .
Then by adjoining the derivation to
one gets a unique graded structure on such that is the degree operator, #m/def/lie
whence .
Modules
Let be a -Graded Lie algebra over with a submonoid
and be a graded module* over .
Then is also a graded module over where acts as the Degree operator on ,
i.e. for . #m/thm/lie
Proof
#state/tidy | #lang/en | #SemBr