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Completeness of the Schwarzschild solution
Siberian Mathematical Journal, 1985The Schwarzschild solution (internal as well as external) is considered and the universal covering of it is constructed. This implies the following: If a spacetime contains both internal and external domains and each radial geodesic is extendible through the Schwarzschild radius then either there exists a cycle (a closed timelike curve) or the exterior
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A complete solution in elastodynamics
Acta Mechanica, 1990In the context of classical elastodynamics, complete representations for the displacement vector and the stress tensor are obtained in terms of a single vector obeying a wave equation. The connection between these representations and other known representations is exhibited.
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