dc.contributor.author | Barrow, JD | en_US |
dc.contributor.author | Clifton, T | en_US |
dc.date.accessioned | 2016-12-01T13:15:06Z | |
dc.date.submitted | 2016-11-07T16:52:33.635Z | |
dc.identifier.uri | http://qmro.qmul.ac.uk/xmlui/handle/123456789/18067 | |
dc.description | 7 pages, 1 figure | |
dc.description | 7 pages, 1 figure | en_US |
dc.description | 7 pages, 1 figure | en_US |
dc.description.abstract | We have found new anisotropic vacuum solutions for the scale-invariant gravity theories which generalise Einstein's general relativity to a theory derived from the Lagrangian $R^{1+\delta}$. These solutions are expanding universes of Kasner form with an initial spacetime singularity at $t=0 $ and exist for $-1/2<\delta <1/4$ but possess different Kasner index relations to the classic Kasner solution of general relativity to which they reduce when $\delta =0$. These solutions are unperturbed by the introduction of non-comoving perfect-fluid matter motions if $p<\rho $ on approach to the singularity and should not exhibit an infinite sequence of chaotic Mixmaster oscillations when $\delta >0$. | en_US |
dc.format.extent | L1 - ? | en_US |
dc.relation.ispartof | Class.Quant.Grav. | en_US |
dc.rights | This is a pre-copyedited, author-produced PDF of an article accepted for publication in Classical and Quantum Gravity following peer review. The version of record is available http://iopscience.iop.org/article/10.1088/0264-9381/23/1/L01/meta | |
dc.subject | gr-qc | en_US |
dc.subject | gr-qc | en_US |
dc.subject | astro-ph | en_US |
dc.subject | hep-th | en_US |
dc.title | Exact cosmological solutions of scale-invariant gravity theories | en_US |
dc.type | Article | |
dc.rights.holder | © 2006 IOP Publishing Ltd | |
dc.identifier.doi | 10.1088/0264-9381/23/1/L01 | en_US |
pubs.author-url | http://arxiv.org/abs/gr-qc/0509085v1 | en_US |
pubs.notes | No embargo | en_US |
pubs.publisher-url | http://dx.doi.org/10.1088/0264-9381/23/1/L01 | en_US |
pubs.volume | 23 | en_US |