Singularities in d=4, N=1 Heterotic String Vacua
arXiv:hep-th/9707047 · doi:10.1016/S0920-5632(98)00166-2
Abstract
Singularities in the Yukawa and gauge couplings of N=1 compactifications of the SO(32) heterotic string are discussed.
8 pages, Latex, minor corrections, references added