Type IIB

We will now apply this method to Type IIB SUGRA.

We do not know what to do for a generic nonlinear SUGRA solution. This method (at least in its present form) can only be applied to the study of linearized fluctuations around the homogeneous space. But even this is technically nontrivial.

We will study the linearized excitations around a fixed background:

1. flat space

2.