Zobrazeno 1 - 10
of 48
pro vyhledávání: '"C. D. Collinson"'
Autor:
C. D. Collinson
Publikováno v:
Measurement + Control, Vol 4 (1971)
Early applications of hydraulic loading were confined to foil rolling mills but recent developments have been rapid. Prestressed mills were adopted to obtain high stiffness and stability. The addition of modern quickly-responding electro-hydraulic eq
Externí odkaz:
https://doaj.org/article/206da51562d4430482cf9cf155452904
Autor:
L. Howarth, C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 32:1845-1849
The Killing Yano tensors of order two admitted by a general class of spherically symmetric static space-times are found. All such space-times admit at least one Killing Yano tensor and four special cases exist, one admitting four Killing Yano tensors
Autor:
L. Howarth, C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 32:1767-1776
Generalized Killing tensors are defined and the integrability conditions discussed to show that the familiar result that a space of constant curvature admits the maximum number of Killing vectors and second order Killing tensors does not necessarily
Autor:
Estelita Vaz, C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 27:751-759
Killing pairs are investigated under the assumption that one member of the pair is a known recurrent vector field. This reduces the equation determining the other member of the pair to a linear equation. The conditions for such a Killing pair to exis
Autor:
Estelita Vaz, C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 25:1031-1039
The empty space field equations are investigated for each of the canonical forms obtained previously for the metrics of space-times admitting a surface generating Killing pair, one member of which is hypersurface orthogonal. It is found that the rati
Autor:
Estelita Vaz, C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 24:405-418
Canonical forms are obtained for the metrics of space-times admitting a surface generating Killing pair, one member of which is hypersurface orthogonal.
Autor:
P. J. O. O'donnell, C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 24:451-455
The empty space field equations are solved for one of the canonical forms obtained previously by Vaz and Collinson for the metrics of space-times admitting a surface generating Killing pair, one member of which is hypersurface orthogonal.
Autor:
C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 22:1163-1168
Publikováno v:
General Relativity and Gravitation. 14:5-15
It is shown that if in some local coordinate system the componentsRijkl of the curvature tensor of an empty space-time are known, then, provided the space-time is not of Petrov typeN with hypersurface orthogonal geodesic rays, the components of the m
Autor:
C. D. Collinson
Publikováno v:
General Relativity and Gravitation. 7:419-422
It is shown that every conformally flat axisymmetric stationary space-time is necessarily static, and that if the source is a perfect fluid then the space-time metric is the usual Schwarzschild interior metric.