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arXiv · 1203.0208

A remark on Zak's theorem on tangencies

José Carlos Sierra
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Abstract

We present a slightly different formulation of Zak's theorem on tangencies as well as some applications. In particular, we obtain a better bound on the dimension of the dual variety of a manifold and we classify extremal and next-to-extremal cases when its secant variety does not fill up the ambient projective space.

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José Carlos Sierra. 2012-03-01. A remark on Zak's theorem on tangencies. https://arxiv.org/abs/1203.0208

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