Dual D-brane actions on AdS(5) x S-5

Utilizing coset superspace approach, dual actions of super D1-and D3-branes on AdS(5) x S-5 are constructed by carrying out duality transformation of world-volume U(1) gauge field. Resulting world-volume actions are shown to possess expected SL(2, Z) properties. Crucial ingredient for deriving SL(2, Z) transformation property of the D-brane actions is covariance of SU(2; 2 \4) coset superspace algebra under SO(2) rotation between two ten-dimension al Type IIB Majorana-Weyl spinors.