RT Journal Article
T1 A comment concerning cohomology and invariants of Lie algebras with respect to contractions and deformations
A1 Campoamor Stursberg, Otto-Rudwig
AB Contrary to the expected behavior, we show the existence of non-invertible deformations of Lie algebras which can generate invariants for the coadjoint representation, as well as delete cohomology with values in the trivial or adjoint module. A criterion to decide whether a given deformation is invertible or not is given in dependence of the Poincaré polynomial.
PB Elsevier
SN 0375-9601
YR 2007
FD 2007
LK https://hdl.handle.net/20.500.14352/50673
UL https://hdl.handle.net/20.500.14352/50673
LA eng
DS Docta Complutense
RD 18 abr 2025