Classical Entropy of N=2 Black Holes: The minimal coupling case
arXiv:hep-th/9611210 · doi:10.1142/S0217732397000819
Abstract
We discuss the entropy and the transformation properties of classical extremal N=2 black hole solutions in supergravity theories associated with the minimal coupling models CP(n-1,1). The entropy is given by a manifestly invariant quantity under the embedding of the duality group SU(1,n) into Sp(2n+2) which is a symmetry of the classical BPS mass formula.
8 pages, Latex