RELATIVISTIC SURFACE DYNAMICS OF AN ISOLATED WORLD TUBE OF PERFECT FLUID
RAND CORP SANTA MONICA CA
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This memorandum constitutes another step in a continuing investigation of the physics and mathematics of general relativity. Here, we are concerned with the boundary values which are appropriate to those cosmological models which assume that the material medium is a perfect fluid. In the past, it has usually been assumed that the entire space is filled by the fluid. The results reported here make such an assumption unnecessary and provide the basis for a cosmological model in which there are a finite number of isolated world tubes of fluid which would hope fully correspond to galaxies.
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