Data di Pubblicazione:
2021
Citazione:
A simple characterization of doubly twisted spacetimes / C. Alberto Mantica, L.G. Molinari. - In: INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS. - ISSN 0219-8878. - 18:5(2021), pp. 21500791.1-21500791.7. [10.1142/S0219887821500791]
Abstract:
In this note, we characterize 1+n doubly twisted spacetimes in terms of “doubly torqued” vector fields. They extend Bang–Yen Chen’s characterization of twisted and generalized Robertson–Walker spacetimes with torqued and concircular vector fields. The result is a simple classification of 1 + n doubly-twisted, doubly-warped, twisted and generalized Robertson–Walker spacetimes.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
twisted spacetime; warped spacetime; torqued vector
Elenco autori:
C. Alberto Mantica, L.G. Molinari
Link alla scheda completa:
Link al Full Text: