47 citations · 87 across the 18 of their papers we have counts for
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Exactly Solvable Connections in Metric-Affine Gravity
Damianos Iosifidis
This article presents a systematic way to solve for the Affine Connection in Metric-Affine Geometry. We start by adding to the Einstein-Hilbert action, a general action that is lin…
The Raychaudhuri equation in spacetimes with torsion and non-metricity
Damianos Iosifidis, Christos G. Tsagas, Anastasios C. Petkou
We introduce and develop the 1+3 covariant approach to relativity and cosmology to spacetimes of arbitrary dimensions that have nonzero torsion and do not satisfy the metricity con…
Scale transformations in metric-affine geometry
Damianos Iosifidis, Tomi Koivisto
This article presents an exhaustive classification of metric-affine theories according to their scale symmetries. First it is clarified that there are three relevant definitions of…
Friedmann-like universes with torsion
D. Kranas, C. G. Tsagas, J. D. Barrow +1
We consider spatially homogeneous and isotropic cosmologies with non-zero torsion. Given the high symmetry of these universes, we adopt a specific form for the torsion tensor that…
Torsion/non-metricity duality in f(R) gravity
Damianos Iosifidis, Anastasios C. Petkou, Christos G. Tsagas
Torsion and nonmetricity are inherent ingredients in modifications of Eintein's gravity that are based on affine spacetime geometries. In the context of pure f(R) gravity we discus…