We review the derivation and the basic properties of the perturbative prepotential in N=2 compactifications of the heterotic superstring. We discuss the structure of the perturbative monodromy group and the embedding of rigidly supersymmetric monodromies associated with enhanced gauge groups, at both perturbative and non-perturbative level.
high energy physics theory, heterotic superstring, enhanced gauge groups
Symmetry (Physics), Superstring theories, Monodromy groups
Antoniadis, I.; Ferrara, S.; Gava, E.; Narain, K. S.; and Taylor, T. R., "Duality symmetries in N = 2 heterotic superstring" (1996). Physics Faculty Publications. Paper 140. http://hdl.handle.net/2047/d20000751
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