Abstract
More general solutions than those presented by Bertolami are deduced in the Brans-Dicke cosmology, endowed with a time-dependent cosmological term, for a Robertson-Walker metric and a perfect fluid obeying the perfect gas law of state.
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Berman, M.S., Som, M.M. Brans-Dicke models with time-dependent cosmological term. Int J Theor Phys 29, 1411–1414 (1990). https://doi.org/10.1007/BF00674120
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DOI: https://doi.org/10.1007/BF00674120