15 citations · 35 across the 5 of their papers we have counts for
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gr-qc2015★ 15 cited
On the spacetime connecting two aeons in conformal cyclic cosmology
A. Araujo, H. Jennen, J. G. Pereira +2
As quotient spaces, Minkowski and de Sitter are fundamental, non-gravitational spacetimes for the construction of physical theories. When general relativity is constructed on a de…
gr-qc2013★ 4 cited
de Sitter transitivity, conformal transformations and conservation laws
J. G. Pereira, A. C. Sampson, L. L. Savi
Minkowski spacetime is transitive under ordinary translations, a transformation that do not have matrix representations. The de Sitter spacetime, on the other hand, is transitive u…
gr-qc2011★ 13 cited
de Sitter geodesics: reappraising the notion of motion
J. G. Pereira, A. C. Sampson
The de Sitter spacetime is transitive under a combination of translations and proper conformal transformations. Its usual family of geodesics, however, does not take into account t…