Sextactic points on a simple closed curve

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We give optimal lower bounds for the number of sextactic points on a simple closed curve in the real projective plane. Sextactic points are after inflection points the simplest projectively invariant singularities on such curves. Our method is axiomatic and can be applied in other situations.
31pages, TeX

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Differential Geometry, 53A15; 51L15

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http://salesiana.dossiersoluciones.com/handle/123456789/59756

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0008137
 http://arxiv.org/abs/math/0008137

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arXiv