%0 Journal Article
%T Prepotentials from Symmetric Products
%A W. Lerche
%A S. Stieberger
%A N. P. Warner
%J Mathematics
%D 1999
%I arXiv
%X We investigate the prepotential that describes certain F^4 couplings in eight dimensional string compactifications, and show how they can be computed from the solutions of inhomogenous differential equations. These appear to have the form of the Picard-Fuchs equations of a fibration of Sym^2(K3) over P^1. Our findings give support to the conjecture that the relevant geometry which underlies these couplings is given by a five-fold.
%U http://arxiv.org/abs/hep-th/9901162v3