Extended D=2 supergravity theories and their lower superspace realisations

Abstract
The linearised solutions to constraints in two-dimensional (2,0) supergravity are given. The authors derive the superconformal ghost action in superspace. The procedure for deriving the non-linear (p, q) geometries of the (p, q+1) and (p+1, q) local superspaces is given. They apply this to the rewriting of the (1,1) NSR superstring in (1,0) superspace and expressing the (2,0) supergravity constraints in the lower superspace. Finally, a new form of D=2, N=1 supergravity is presented.