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On the Matching Conditions for the Collapsing Cylinder

L. Herrera·M. A. H. MacCallum·N. O. Santos
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Abstract

We review the matching conditions for a collapsing anisotropic cylindrical perfect fluid, recently discussed in the literature (2005 {\it Class. Quantum Grav.} {\bf 22} 2407). It is shown that radial pressure vanishes on the surface of the cylinder, contrary to what is asserted in that reference. The origin of this discrepancy is to be found in a mistake made in one step of the calculations. Some comments about the relevance of this result in relation to the momentum of Einstein--Rosen waves are presented.

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L. Herrera, M. A. H. MacCallum, N. O. Santos. 2006-11-28. On the Matching Conditions for the Collapsing Cylinder. https://doi.org/10.1088/0264-9381%2F24%2F4%2Fc01

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