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On the lines of torsion. - MaRDI portal

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On the lines of torsion. (Q1475548)

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scientific article; zbMATH DE number 2619734
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English
On the lines of torsion.
scientific article; zbMATH DE number 2619734

    Statements

    On the lines of torsion. (English)
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    1914
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    Unter ``Torsionskurven'' einer Fläche werden Kurven verstanden, auf denen die geodätische Torsion ein Extremum besitzt. Ihre Gleichung ist \[ Edu^2 - Gdv^2 = 0, \] wenn die Krümmungslinien als Parameterkurven gewählt werden. Ihre Normalkrümmung ist in jedem Punkte gleich dem arithmetischen Mittel der Hauptkrümmungen.
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