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math.DG2023★ 4 cited
Birkhoff Theorem for Berwald Finsler spacetimes
Nicoleta Voicu, Christian Pfeifer, Samira Cheraghchi
Finsler spacetime geometry is a canonical extension of Riemannian spacetime geometry. It is based on a general length measure for curves (which does not necessarily arise from a sp…
math.DG2022★ 9 cited
Four-dimensional SO(3)-spherically symmetric Berwald Finsler spaces
Samira Cheraghchi, Christian Pfeifer, Nicoleta Voicu
We locally classify all SO(3)-invariant 4-dimensional pseudo-Finsler Berwald structures. These are Finslerian geometries which are closest to (spatially, or SO(3))-spherically symm…