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Tensor-multi-scalar theories from multidimensional cosmology

M. Rainer·A. Zhuk
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Abstract

Inhomogeneous multidimensional cosmological models with a higher dimensional space-time manifold M=M_0 x M_1 x ... M_n are investigated under dimensional reduction to tensor-multi-scalar theories. In the Einstein conformal frame, these theories take the shape of a flat sigma-model. For the singular case where M_0 is 2-dimensional, the dimensional reduction to dilaton gravity is preformed with different distinguished representations of the action.

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M. Rainer, A. Zhuk. 1996-08-08. Tensor-multi-scalar theories from multidimensional cosmology. https://doi.org/10.1103/physrevd.54.6186

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