Generalized regularly discontinuous solutions of the Einstein equations
arXiv:0704.0103 · doi:10.1007/s10773-007-9450-y
Abstract
The physical consistency of the match of piecewise- metrics is discussed. The mathematical theory of gravitational discontinuity hypersurfaces is generalized to cover the match of regularly discontinuous metrics. The mean-value differential geometry framework on a hypersurface is introduced, and corresponding compatibility conditions are deduced. Examples of generalized boundary layers, gravitational shock waves and thin shells are studied.
26 pages.