Event Details

We focus on d = 7, 8, 9 supergravity theories with 16 supercharges. We emphasize two discrete aspects of these theories: generalized global symmetries (encoding the data of extended objects) and frozen singularities (indicating some non-geometric regime of string compactification). We give an exhaustive classification of IIB supergravity theory in 8D, particularly emphasizing these discrete aspects. On the other hand, we present a consistency condition involving their higher-form symmetries and see that they rule out many global structures of the gauge group in 8D supergravity theory. One can apply such a constraint to rederive a known geometric constraint on elliptically fibered K3 physically. Time permitting, we will briefly review a few other results on consistency conditions of such supergravities.