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Campoamor Stursberg, Otto Ruttwig
(2007)
*A comment concerning cohomology and invariants of Lie algebras with respect to contractions and deformations.*
Physics Letters A, 362
(5-6).
pp. 360-367.
ISSN 0375-9601

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Official URL: http://www.sciencedirect.com/science/article/pii/S0375960106016422

## Abstract

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.

Item Type: | Article |
---|---|

Subjects: | Sciences > Mathematics > Algebra |

ID Code: | 21618 |

Deposited On: | 31 May 2013 14:24 |

Last Modified: | 12 Dec 2018 15:13 |

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