Perfect fluid space-times with a two-dimensional orthogonally transitive group of homothetic motions
| dc.contributor.author | Kolassis, C. | en |
| dc.contributor.author | Griffiths, J. B. | en |
| dc.date.accessioned | 2015-11-24T18:39:13Z | |
| dc.date.available | 2015-11-24T18:39:13Z | |
| dc.identifier.issn | 0001-7701 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/17404 | |
| dc.rights | Default Licence | - |
| dc.subject | similar cosmological models | en |
| dc.subject | qualitative-analysis | en |
| dc.subject | tetrad | en |
| dc.title | Perfect fluid space-times with a two-dimensional orthogonally transitive group of homothetic motions | en |
| heal.abstract | We use the GHP formalism to obtain perfect fluid space-times with a two-dimensional and orthogonally transitive group of proper homothetic motions H-2, with the additional condition that the four-velocity of the fluid either lies on the group orbits or is orthogonal to them. In the first case the orbits of the H-2 are timelike and all possible solutions are explicitly given. They comprise (i) space-times of Petrov type I that admit a group H-3 containing two hypersurface orthogonal and commuting Killing vectors (when the H-2 is abelian, the fluid has a stiff equation of state and the space-time is of type D), and (ii) a class of type D static space-times with a maximal H-2 in which the two-spaces orthogonal to the group orbits have constant curvature. When the orbits of the H-2 are spacelike, the fluid is necessarily stiff and different classes of solutions admitting maximal H-2 and H-3 are identified. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://A1996UW01400003 | - |
| heal.identifier.secondary | http://www.springerlink.com/content/r548k57542481405/fulltext.pdf | - |
| heal.journalName | General Relativity and Gravitation | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1996 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
Αρχεία
Φάκελος/Πακέτο αδειών
1 - 1 of 1
Φόρτωση...
- Ονομα:
- license.txt
- Μέγεθος:
- 1.74 KB
- Μορφότυπο:
- Item-specific license agreed upon to submission
- Περιγραφή: