• Bianchi type cosmological models in f(T) tele-parallel gravity 

      van den Hoogen, Robert; Coley, Alan; McNutt, David Duncan (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-12)
      Symmetry assumptions on the geometrical framework have provided successful mechanisms to develop physically meaningful solutions to many problems. In tele-parallel gravity, invariance of the frame and spin-connection under a group of motions defines an affine symmetry group. Here, we assume there exists a three-dimensional group of affine symmetries acting simply transitively on a spatial hypersurface ...
    • Generalized Teleparallel de Sitter geometries 

      Coley, Alan; Landry, Alexandre; van den Hoogen, Robert; McNutt, David Duncan (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-30)
      Theories of gravity based on teleparallel geometries are characterized by the torsion, which is a function of the coframe, derivatives of the coframe, and a zero curvature and metric compatible spin-connection. The appropriate notion of a symmetry in a teleparallel geometry is that of an affine symmetry. Due to the importance of the de Sitter geometry and Einstein spaces within General Relativity, ...