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Published online by Cambridge University Press: 24 October 2008
The geodetic problem presented by a quadratic form is identical with the dynamical problem in which the same quadratic appears in the kinetic energy, and potential energy is not represented. If the quadratic in space-differentials is equated to kdt2, the problem is essentially the same whatever constant value is given to k; the corresponding feature is the arbitrary constant value of kinetic energy.
* Proc. Camb. Phil. Soc., vol. 22, p. 138 (1924), esp. p. 156.CrossRefGoogle Scholar