par Kleinschmidt, Axel ;Roest, Diederik
Référence Journal of High Energy Physics, 07, page (035)
Publication Publié, 2008-07-08
Article révisé par les pairs
Résumé : The bosonic sector of various supergravity theories reduces to a homogeneous space G/H in three dimensions. The corresponding algebras are simple for (half-)maximal supergravity, but can be semi-simple for other theories. We extend the existing literature on the Kac-Moody extensions of simple Lie algebras to the semi-simple case. Furthermore, we argue that for = 2 supergravity the simple algebras have to be augmented with an (2) factor.