520 citations · 1.8k across the 29 of their papers we have counts for
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hep-th2006★ 520 cited
Thermodynamic Behavior of Friedmann Equation at Apparent Horizon of FRW Universe
M. Akbar, Rong-Gen Cai
It is shown that the differential form of Friedmann equation of a FRW universe can be rewritten as a universal form at apparent horizon, where and are the…
gr-qc2006★ 4 cited
symmetries of the Ricci tensor of static space times with maximal symmetric transverse spaces
M. Akbar
Static space times with maximal symmetric transverse spaces are classified according to their Ricci collineations. These are investigated for non-degenerate Ricci tensor ($det.(R_α…
hep-th2006★ 394 cited
Friedmann Equations of FRW Universe in Scalar-tensor Gravity, f(R) Gravity and First Law of Thermodynamics
M. Akbar, Rong-Gen Cai
In the paper, hep-th/0501055 (R.G. Cai and S.P. Kim, JHEP {\bf 0502}, 050 (2005)), it is shown that by applying the first law of thermodynamics to the apparent horizon of an FRW un…