Duality Symmetry in Kaluza-Klein $n+D+d$ Dimensional Cosmological Model

J. A. Nieto, M. P. Ryan, O. Velarde +1

It is shown that, with the only exception of $n=2$, the Einstein-Hilbert action in $n+D+d$ dimensions, with $n$ times, is invariant under the duality transformation $a\to \frac{1}{…