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gr-qc2020
Non-Riemannian Cosmology: The role of Shear Hypermomentum
Damianos Iosifidis
We consider the usual Einstein-Hilbert action in a Metric-Affine setup and in the presence of a Perfect Hyperfluid. In order to decode the role of shear hypermomentum, we impose va…
gr-qc2020
Cosmological Hyperfluids, Torsion and Non-metricity
Damianos Iosifidis
We develop a novel model for Cosmological Hyperfluids, that is fluids with intrinsic hypermomentum that induce spacetime torsion and non-metricity. Imposing the Cosmological Princi…