Une nouvelle caract\'erisation des vari\'et\'es de Veronese

Let $X$ be the germ of a smooth complex variety at a given point $x\in {\mathbbb P}^N$withregularosculationatorder$q$ and suppose that, for any direction $v\in \text{mathbbb}P{T}_{x}X$, there exists a rationnal normal curve locally contained in $X$ and passing through the point $x$ in direction $v$. We show that $X$ is necessarily a Veronese variety of order $q$. As a special case, we recover a classical result of Bompiani, in which it is assumed that the condition is verified by any point close to $x$.