242 citations · 632 across the 30 of their papers we have counts for
4 papers · 1 filter
Cosmological Landsberg Finsler spacetimes
Annamária Friedl-Szász, Elena Popovici-Popescu, Nicoleta Voicu +2
We locally classify all possible cosmological homogeneous and isotropic Landsberg-type Finsler structures, in 4-dimensions. Among them, we identify viable non-stationary Finsler sp…
Metric-affine cosmological models and the inverse problem of the calculus of variations. Part II: Variational bootstrapping of the CDM model
Ludovic Ducobu, Nicoleta Voicu
The method of variational bootstrapping, based on canonical variational completion, allows one to construct a Lagrangian for a physical theory depending on two sets of field variab…
Metrizability of SO(3)-invariant connections: Riemann versus Finsler
Nicoleta Voicu, Salah Gomaa Elgendi
For a torsion-free affine connection on a given manifold, which does not necessarily arise as the Levi-Civita connection of any pseudo-Riemannian metric, it is still possible that…
Metric-affine cosmological models and the inverse problem of the calculus of variations. Part 1: variational bootstrapping -- the method
Ludovic Ducobu, Nicoleta Voicu
The method of variational completion allows one to transform an (in principle, arbitrary) system of partial differential equations -- based on an intuitive ``educated guess'' -- in…