Fluxes, Twisted Theory and U(1) symmetries of the Supermembrane

In this talk I will discuss some recent results of the Supermembrane worldvolume theory compactified a on a toroidal target space with particular constant flux backgrounds. I will show that it implies the existence of a central charge condition on its worldvolume and consequently it has discrete spectrum. Its bundle description can be understood  in terms of a M2-brane Twisted Torus bundle. This bundle description will  exhaust the classification of the possible  inequivalent classes of M2-brane bundles for target space considered. I will show that under certain assumptions, the theoy also exhibits some U(1) symmetries not manifest from the very beginning.