Abstract
In this paper a special group of bijective maps of a normed plane (or, more generally, even of a plane with a suitable Jordan curve as unit circle) is introduced which we call the group of general rotations of that plane. It contains the isometry group as a subgroup. The concept of general rotations leads to the notion of flexible motions of the plane, and to the concept of Minkowskian roulettes. As a nice consequence of this new approach to motions the validity of strong analogues to the Euler-Savary equations for Minkowskian roulettes is proved.
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Notes
As the Riemannian one.
Normality means the so-called Birkhoff orthogonality of the Minkowski plane.
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Balestro, V., Horváth, Á.G. & Martini, H. Angle measures, general rotations, and roulettes in normed planes. Anal.Math.Phys. 7, 549–575 (2017). https://doi.org/10.1007/s13324-016-0155-3
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DOI: https://doi.org/10.1007/s13324-016-0155-3