%0 Journal Article
%T Tangential projections and secant defective varieties
%A Roberto Munoz
%A Jose Carlos Sierra
%A Luis Eduardo Sola Conde
%J Mathematics
%D 2007
%I arXiv
%X Going one step further in Zak's classification of Scorza varieties with secant defect equal to one, we characterize the Veronese embedding of $\P^n$ given by the complete linear system of quadrics and its smooth projections from a point as the only smooth irreducible complex and non-degenerate projective subvarieties of $\P^N$ that can be projected isomorphically into $\P^{2n}$ when $N\geq\binom{n+2}{2}-2$.
%U http://arxiv.org/abs/0707.1429v1