Uniqueness of Simultaneity.
[p]We consider the problem of uniqueness of certain simultaneity structures in flat spacetime. Absolute simultaneity[/em] is specifiled to be a non-trivial equivalence relation which is invariant under the automorphism group Aut of spacetime. Aut is taken to be the identity-component of either the i...
| Publicado en: | British Journal for the Philosophy of Science Vol. 52; no. 4; pp. 651 - 671 |
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| Formato: | Artículo |
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University of Chicago Press
Dec2001
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=5570504&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 5570504 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00070882 BPL jtl: British Journal for the Philosophy of Science issn: 00070882 maglogo: N pubinfo: dt: Dec2001 vid: 52 iid: 4 pid: 415 pub: University of Chicago Press artinfo: ui: 5570504 10.1093/bjps/52.4.651 ppf: 651 ppct: 20 formats: tig: atl: Uniqueness of Simultaneity. aug: au: Giulini, Domenico su: Relativity Automorphisms sug: subj: Relativity Automorphisms ab: [p]We consider the problem of uniqueness of certain simultaneity structures in flat spacetime. Absolute simultaneity[/em] is specifiled to be a non-trivial equivalence relation which is invariant under the automorphism group Aut of spacetime. Aut is taken to be the identity-component of either the inhomogeneous Galilei group or the inhomogeneous Lorentz group. Uniqueness of standard simultaneity in the first, and absence of any absolute simultaneity in the second case are demonstrated and related to certain group theoretic properties. Relative simultaneity[/em] with respect to an additional structure X[/em] on spacetime is specified to be a non-trivial equivalence relation which is invariant under the subgroup in Aut that stabilises X[/em]. Uniqueness of standard Einstein simultaneity is proven in the Lorentzian case when X[/em] is an inertial frame. We end by discussing the relation to previous work of others.[/p] pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2001 holdings: @attributes: islocal: N |
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