Scalar-tensor $σ$-cosmologies
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We show that the scalar-tensor $σ$-model action is conformally equivalent to general relativity with a minimally coupled wavemap with a particular target metric. Inflation on the source manifold is then shown to occur in a natural way due both to the arbitrary curvature couplings and the wavemap self-interactions.
Research announcement, 2 pages, submitted for publication in the MG9 Proceedings
Research announcement, 2 pages, submitted for publication in the MG9 Proceedings