Wa. Sabra, SPACETIME DUALITY AND SU(N,1) SU(N)CIRCLE-TIMES-U(1) COSETS OF ORBIFOLD COMPACTIFICATION/, Modern physics letters A, 11(18), 1996, pp. 1497-1507
The duality symmetry group of the cosets SU(n,1)/SU(n)xU(1), which des
cribe the moduli space of a two-dimensional subspace of an orbifold mo
del with (n - 1) complex Wilson lines moduli, is discussed. The full d
uality group and its explicit action on the moduli fields are derived.