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Showing 1 to 1 of 1 for “"Satz von Roberts"”.
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Der methodische Einsatz von MÖBIUS-Transformationen über den Quaternionen in der Geometrie des Raumes
… of the tetrahedron and parallel version of Roberts' Theorem by continuity arguments. For this also the introduction of the power of a point with respect to a sphere is necessary as well as the terms radical plane, line and point. In the next chapter quaternionic Möbius transformations are …