string network

There are -BPS state solutions of type IIB supergravity which locally exhibit black branes in the shape of three -strings jointly intersecting. Globally many of such 3-string junctions may combine to form a more complicated network of black string configurations, hence called a string network (Sen 97). The lift to 11d supergravity/M-theory of 3-string junctions is supposed to be given by membrane triple junctions. brane intersections/bound states/wrapped branes/polarized branes D-branes and...