par Tabti, Nassiba
Référence Fortschritte der Physik, 55, 5-7, page (821-826)
Publication Publié, 2007-05
Article révisé par les pairs
Résumé : Many recent researches indicate that several gravitational D-dimensional theories suitably coupled to some matter fields (including in particular pure gravity in D dimensions, the low energy effective actions of the bosonic string and the bosonic sector of M-theory) would be characterized by infinite dimensional Kac-Moody algebras G ++ and G +++. The possible existence of these extended symmetries motivates a development of a new description of gravitational theories based on these symmetries. The importance of Kac-Moody algebras and the link between the G +++-invariant theories and the uncompactified space-time covariant theories are discussed. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.