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gr-qc2000
Schwarzschild metrics and quasi-universes
A. G. Agnese, M. La Camera
The exterior and interior Schwarzschild solutions are rewritten replacing the usual radial variable with an angular one. This allows to obtain some results otherwise less apparent…
gr-qc2000
On 4-dimensional cosmological models locally embedded in a 5-dimensional Ricci-flat space
A. G. Agnese, M. La Camera
We employ a theorem due to Campbell to build some simple 4-dimensional cosmological models which originate from solutions describing waves propagating along the extra-dimension of…