5 citations · 9 across the 2 of their papers we have counts for
2 papers
gr-qc2014★ 4 cited
Cosmological meaning of the gravitational gauge group
Jia-An Lu
It is shown that among the R+beta S^{abc}S_{abc} models, only the one with beta=1/2 has nonvanishing torsion effect in the Robertson--Walker universe filled with a spin fluid, wher…
gr-qc2014★ 5 cited
R+S^2 theories of gravity without big-bang singularity
Jia-An Lu
The R+S^2 theories of gravity, where S^2 denotes the quadratic torsion terms, are analyzed under three cases. In the first two cases, the matter fields are described by two differe…