Abstract
The chiral null model is a generalization of the fundamental string and gravitational wave background. After dimensional reduction the 4-D field content is given by the metric, torsion, dilaton, a moduli field and 6 gauge fields. This model is self-dual, exact and near the singularities asymptotically free. The relation to known IWP, Taub-NUT and rotating black hole solutions is discussed.
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