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Peer reviewedDunn, K. A. – American Journal of Physics, 1981
The Poincare group, the group of transformations of the plane which preserve the Minkowski distance between points, is derived as compositions of suitably defined reflections in straight lines. It is shown that any such transformations must be one of four types. (Author/JN)
Descriptors: College Science, Geometry, Higher Education, Mathematical Formulas
