Mathematics – Mathematical Physics
Scientific paper
Nov 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jmp....18.2092s&link_type=abstract
Journal of Mathematical Physics, vol. 18, Nov. 1977, p. 2092-2096. Research supported by the University Grants Commission.
Mathematics
Mathematical Physics
1
Astronomical Models, Cosmic Dust, Cosmology, Space-Time Functions, Tachyons, Einstein Equations, Flux Density, Gravitational Fields, Momentum, Tetrad Theory, Universe
Scientific paper
In the present paper some investigations have been made on the model suggested by Ray for a tachyon dust universe and the results obtained have been compared with the results in the flat Friedmann universe filled with ordinary dust (here called bradyon dust) moving slower than light, by various scientists, on the ground that the role played by time for ordinary matter is played by spatial coordinates for tachyons. The effect of the cosmological constant (A) on the expanding tachyon universe also has been discussed here. The tetrad technique has been used as a mathematical tool for handling the problems of gravitational field equations and perturbation of momentum flux.
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