Robertson-Walker cosmological models with conformally invariant scalar field and trace-free energy-momentum tensor

Details Robertson-Walker cosmological models with conformally invariant scalar field and trace-free energy-momentum tensor Robertson-Walker cosmological models with conformally invariant scalar field and trace-free energy-momentum tensor

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.207..301b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 207, no. 2, p. 301-304

Physics

Astronomical Models, Cosmology, Field Theory (Physics), Gravitation Theory, Gravitational Fields, Einstein Equations, Error Analysis, Invariance, Mathematical Models, Momentum, Scalars, Tensors

Scientific paper

Several authors have studied solutions of Einstein's field equations for a conformally invariant scalar field with trace-free energy-momentum tensor for the Robertson-Walker models for K = 0, +/- 1. The relationship of these solutions to a previously existing one by Som (1985) is discussed. The K = 0 model derived by Innaiah and Reddy (1985) is shown to be a special case of the Bianchi type-I models due to Accioly, Vaidya and Som (1983a).

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