Felix Klein's paper on real flexes vindicated

• Autorzy: Felice Ronga
• Języki publikacji: EN

Abstrakty

EN

In a paper written in 1876 [4], Felix Klein gave a formula relating the number of real flexes of a generic real plane projective curve to the number of real bitangents at non-real points and the degree, which shows in particular that the number of real flexes cannot exceed one third of the total number of flexes. We show that Klein's arguments can be made rigorous using a little of the theory of singularities of maps, justifying in particular his resort to explicit examples.

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Banach Center Publications
• Rocznik: 1998
• Tom: 44
• Numer: 1
• Strony: 195-210

Daty

wydano

1998

Twórcy

autor

Felice Ronga

• Section de Mathématiques, Université de Genève, 2-4- rue du Lièvre, CH-1211 Genève 24, Switzerland

Bibliografia

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