Target Space
Equivalently: let us consider a fixed representation of and consider the space of maps

In terms of the previous slide:

The fiber of is some orbit of the following action of :

(there is no preferred point on the orbit)
The target space of our sigma-model is a cone in the associated vector bundle:

What can we say about the action of on this target space? We postulate the action on the matter fields:

This is without loss of generality; we can just say that this is the definition of the pure spinor coordinates and
  • And how does act on and ?