Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/58222Registo completo
| Campo DC | Valor | Idioma |
|---|---|---|
| dc.contributor.author | Luz, Paulo | por |
| dc.contributor.author | Mena, Filipe C. | por |
| dc.contributor.author | Ziaie, Amir Hadi | por |
| dc.date.accessioned | 2019-01-15T16:28:09Z | - |
| dc.date.issued | 2019 | - |
| dc.identifier.issn | 0264-9381 | por |
| dc.identifier.uri | https://hdl.handle.net/1822/58222 | - |
| dc.description.abstract | The evolution of inhomogeneous space-times composed of uncharged fermions is studied for Szekeres metrics which have no Killing vectors, in general. Using the Einstein-Cartan theory to include the effects of (intrinsic) matter spin in general relativity, the dynamics of a perfect fluid with nonnull spin degrees of freedom is considered. It is shown that, if the matter is composed by effective dust and certain constraints on the initial data are verified, a singularity will not form. Various special cases are discussed, such as Lemaitre-Tolman-Bondi and Bianchi I space-times, where the results are further extended or shown explicitly to be verified. | - |
| dc.description.sponsorship | AHZ is grateful to D Malafarina and R Goswami for useful discussions and to F W Hehl for helpful correspondence. PL thanks IDPASC and FCT-Portugal for financial support through Grant No. PD/BD/114074/2015. FCM was supported by Portuguese Funds through FCT-Fundacao para a Ciencia e Tecnologia, within the Projects UID/MAT/00013/2013 and PTDC/MAT-ANA/1275/2014 as well as grant SFRH/BSAB/130242/2017. This work has been supported financially by Research Institute for Astronomy & Astrophysics of Maragha (RIAAM) under research project No. 1/5750-61. | - |
| dc.language.iso | eng | por |
| dc.publisher | IOP Publishing Ltd | por |
| dc.relation | PD/BD/114074/2015 | - |
| dc.relation | info:eu-repo/grantAgreement/FCT/5876/147370/PT | - |
| dc.relation | PTDC/MAT-ANA/1275/2014 | - |
| dc.relation | SFRH/BSAB/130242/2017 | - |
| dc.rights | openAccess | por |
| dc.subject | Einstein-Cartan theory | por |
| dc.subject | gravitational collapse | por |
| dc.subject | singularities | por |
| dc.title | Influence of intrinsic spin in the formation of singularities for inhomogeneous effective dust space-times | por |
| dc.type | article | por |
| dc.peerreviewed | yes | por |
| oaire.citationIssue | 1 | por |
| oaire.citationVolume | 36 | por |
| dc.identifier.eissn | 1361-6382 | por |
| dc.identifier.doi | 10.1088/1361-6382/aae9ff | por |
| dc.subject.fos | Ciências Naturais::Matemáticas | por |
| dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
| dc.subject.wos | Science & Technology | por |
| sdum.journal | Classical and Quantum Gravity | por |
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Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| luz-hadi-mena.pdf | 689,52 kB | Adobe PDF | Ver/Abrir |
