Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-28T14:01:19.068Z Has data issue: false hasContentIssue false

An acceleration condition for b-incomplete timelike curves

Published online by Cambridge University Press:  24 October 2008

C. T. J. Dodson
Affiliation:
University of Lancester
L. J. Sulley
Affiliation:
University of Lancester
P. M. Williams
Affiliation:
University of Lancester

Abstract

The b-completion of a smooth manifold with linear connection was introduced by Schmidt (6). He pointed out that, in a spacetime, an inextensible timelike curve of finite proper length and bounded acceleration has an endpoint on the b-boundary. However, it is not clear in what sense boundedness was meant. Geroch(1) suggested that any acceptable method of completing a spacetime should have this property with boundedness interpreted through the Lorentz norm. This result for the b-completion was given by Rosso(4), based on his earlier paper (3), which, however, contains some arguments that we do not accept. We give another proof of the result and improve it by weakening the condition of boundedness of the acceleration.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Geroch, R. Singularities. In Relativity, ed. Fickler, S., Carmeli, M. and Witten, L. (Plenum Press, New York, 1970), pp. 259291.CrossRefGoogle Scholar
(2)Hawking, S. W. and Ellis, G. F. R.The large scale structure of space-time (C. U. P., Cambridge, 1973).CrossRefGoogle Scholar
(3)Rosso, F.On the boundedness of the 4-acceleration norm for timelike curves in general relativity. Rend. Accad. Sci. Fis. Mat. Napoli, ser. IV, 43 (1976), 362371.Google Scholar
(4)Rosso, F.A comparison between Geroch and Schmidt space-time incompleteness. Rend. Accad. Sci. Fis. Mat. Napoli, ser. VI, 11 (1978), 141149.Google Scholar
(5)Rosso, F.Bundle and proper incompleteness with unbounded world acceleration in general relativity. Boll. Un. Mat. Italiana A (5), 16 (1979), 593597.Google Scholar
(6)Schmidt, B. G.A new definition of singular points in general relativity. General Relativity and Gravitation 1 (1971), 269280.CrossRefGoogle Scholar