Whitehead's lemma

GPTKB entity

Statements (13)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkbp:appliesTo semisimple Lie algebra
field of characteristic zero
finite-dimensional module
gptkbp:field gptkb:Lie_group
https://www.w3.org/2000/01/rdf-schema#label Whitehead's lemma
gptkbp:implies semisimple Lie algebras are rigid
gptkbp:namedAfter gptkb:J._H._C._Whitehead
gptkbp:state the first and second cohomology groups of a finite-dimensional semisimple Lie algebra over a field of characteristic zero with coefficients in a finite-dimensional module vanish
gptkbp:usedIn gptkb:Lie_algebra_cohomology
representation theory
gptkbp:bfsParent gptkb:Lie_algebras
gptkbp:bfsLayer 6