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Die Beziehung zwischen Fusspunktkurve und Krümmungsmittelpunktkurve

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Abstract

In view of applications to elastic wave propagation in anisotropic bodies, it is noted that the evolute (locus of centers of curvature) of the podaria (locus of intersections of normals through the origin to the tangents to a curve with these tangents) of a given plane curve is the given curve contracted to halfsize.

Résumé

Au cours d'un travail sur la propagation des ondes élastiques dans un milieu anisotrope, on a établi que le lieu des centres de courbure du lieu des intersections des normales aux tangentes à une courbe plane donnée et passant par l'origine avec ces tangentes est la courbe donnée, réduite à la moitié de sa grandeur.

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Literatur

  1. Fedorov, F. I.,Theory of Elastic Waves in Crystals, Plenum Press, New York 1968.

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  2. Payton, R. G.,Elastic Wave Propagation in Transversely isotropic Media, Martinus Nijhoff, Den Haag 1983.

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Rösel, R. Die Beziehung zwischen Fusspunktkurve und Krümmungsmittelpunktkurve. Z. angew. Math. Phys. 41, 447–449 (1990). https://doi.org/10.1007/BF00959992

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  • DOI: https://doi.org/10.1007/BF00959992

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