12 citations · 16 across the 4 of their papers we have counts for
4 papers
An alternative non-negative gravitational energy tensor to the Bel-Robinson tensor
Lau Loi So
The Bel-Robinson tensor gives a positive definite gravitational energy in the small sphere limit approximation. However, there is an alternative tensor which…
Energy-momentum density in small regions: the classical pseudotensors
Lau Loi So, James M. Nester, Hsin Chen
The values for the gravitational energy-momentum density, given by the famous classical pseudotensors: Einstein, Papapetrou, Landau-Lifshitz, Bergmann-Thompson, Goldberg, Møller, a…
Gravitational energy in a small region for the modified Einstein and Landau-Lifshitz pseudotensors
Lau Loi So
The purpose of the classical Einstein and Landau-Lifshitz pseudotensors is for determining the gravitational energy. Neither of them can guarantee a positive energy in holonomic fr…
The Energy of Bianchi Type I and II Universes in Teleparallel Gravity
Lau Loi So, T. Vargas
For certain models, the energy of the universe which includes the energy of both the matter and the gravitational fields is obtained by using the quasilocal energy-momentum in tele…