Locally Metric Spacetimes
نویسنده
چکیده
Spacetimes have conventionally been described by a global Lorentzian metric on a differentiable four-manifold. Herein we explore the possibility of spacetimes defined by a connection, which is locally but not globally Levi-Civita. The general method of obtaining such connections is presented for the nondegenerate case followed by an example that modifies the Robertson-Walker spacetimes for flat spacelike hypersurfaces.
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