Abstract
We present a model of a one-dimensional extended relativistic object, whose motion is defined by the requirement that its time track in Minkowski space is a surface of the constant mean curvature H. The world surface of the relativistic string is a particular case of such surfaces, namely, a minimal surface with H=0. By differential-geometry methods the theory of the proposed object moving in three-dimensional space-time is reduced to one nonlinear equation ϕττ − ϕσσ = Hshϕ. In the theory under consideration, there naturally arises the pair of Lax's operators needed to solve this nonlinear equation by the inverse scattering method.
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Barbashov, B.M., Nesterenko, V.V. & Chervjakov, A.M. Generalization of the relativistic string model in the geometrical approach. Lett Math Phys 3, 359–365 (1979). https://doi.org/10.1007/BF00397208
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DOI: https://doi.org/10.1007/BF00397208