학술논문
Nonstationary general-relativistic ``strings''.
Document Type
Journal
Author
Shaver, Eric (3-QEN-P) AMS Author Profile; Lake, Kayll (3-QEN-P) AMS Author Profile
Source
Subject
83 Relativity and gravitational theory -- 83C General relativity
83C20Classes of solutions; algebraically special solutions, metrics with symmetries
83C20
Language
English
Abstract
Summary: ``We examine cylindrically symmetric solutions to the Einstein equations under the assumption of functional separability of the metric coefficients. Under the further assumption that the energy-momentum tensor is of the form $T^t_t=T^z_z=-\sigma(r,t)$, all such solutions, with their vacuum exteriors, are found. It is shown that the vacua cannot be matched smoothly onto a Robertson-Walker background.''