Document JFM 55.0366.05

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Remarque sur un théorème de Chasles. (French) JFM 55.0366.05

Bulletin sc. Math. (2) 53, 183-185 (1929).

Verf. beweist folgenden Satz: Zu einer ebenen algebraischen Kurve bestimme man die Berührungspunkte der Tangenten einer festen Richtung und den Schwerpunkt dieser Berührungspunkte. Zieht man zu jeder Richtung durch den Schwerpunkt der zugehörigen Berührungspunkte die Parallele, so umhüllen diese Geraden eine neue algebraische Kurve, die im Endlichen nur eine Tangente hat.

Reviewer: Pannwitz, Dr. Erika (Berlin)

JFM Section:

Erster Halbband. Fünfter Abschnitt. Geometrie. Kapitel 5. Algebraische Geometrie. C. Ebene algebraische Kurven.

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