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Dualities and signatures of G++ invariant theories

Sophie de Buyl, Laurent Houart, Nassiba Tabti

hep-tharXiv:hep-th/0505199

Abstract

The G++ content of the formulation of gravity and M-theories as very-extended Kac-Moody invariant theories is further analysed. The different exotic phases of all the GB++ theories, which admit exact solutions describing intersecting branes smeared in all directions but one, are derived. This is achieved by analysing for all G++ the signatures which are related to the conventional one (1,D-1) by `dualities' generated by the Weyl reflections.

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