Summary
In this paper we present a derivation of the characteristic differential equation of uniformly accelerated motion, in special relativity, from a variational principle formulated in Minkowskian velocity 4-space. Because of the constraints introduced by the theory of relativity, the variational problem is reduced to an equivalent non-parametric Lagrange problem with variable end points in a five-dimensional space. The determination of the Euler-Lagrange equations requires the use of the transversality equations.
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Krikorian, R.A. On a variational formulation of uniformly accelerated motion in special relativity. Nuov Cim B 111, 723–729 (1996). https://doi.org/10.1007/BF02743402
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DOI: https://doi.org/10.1007/BF02743402