Contents Online
Mathematical Research Letters
Volume 18 (2011)
Number 4
A Remark on Zak’s Theorem on Tangencies
Pages: 783 – 789
DOI: https://dx.doi.org/10.4310/MRL.2011.v18.n4.a15
Author
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.
Published 19 August 2011