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Ignorable coordinates and steady motion in classical mechanics

Published online by Cambridge University Press:  24 October 2008

C. W. Kilmister
Affiliation:
King's College, London and Brandeis University, Waltham, Massachusetts
F. A. E. Pirani
Affiliation:
King's College, London and Brandeis University, Waltham, Massachusetts

Abstract

It is shown, for a classical dynamical system with a Lagrangian, that the existence of an ignorable coordinate is equivalent to the vanishing of a certain Lie derivative. On this covariant description is based a new definition of steady motion. A definition given earlier by Synge is criticized.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1965

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References

REFERENCES

(1)Eisenhart, L. P.Continuous groups of transformations (Princeton, 1933).Google Scholar
(2)Kilmister, C. W.Edinburgh Math. Notes No. 44 (1961), 1316.Google Scholar
(3)Routh, E. J.Dynamics of a system of rigid bodies (London, 1905).Google Scholar
(4)Schoutten, J. A.Ricci-Calculus (Berlin, 1954).CrossRefGoogle Scholar
(5)Synge, J. L.Philos. Trans. Roy. Soc. London, Ser. A 226 (1926), 31106.Google Scholar
(6)Whittaker, E. T.Analytical dynamics (Cambridge, 1927).Google Scholar
(7)Yano, K.The theory of the Lie derivative and its applications (North Holland; Amsterdam, 1955).Google Scholar