Recall a definition. Let $V\subset \mathbb CP^n$ be a projective variety and $E$ be a holomorphic vector bundle on it. We call $E$ linearly trivial if the restriction of $E$ to any projective line in $V$ is trivial.
It is well known that any linearly trivial bundle on $\mathbb CP^n$ itself is trivial (see Okonek, Schneider, Spindler).
Question 1. I think that I have an idea of a generalization of this statement and would like to ask you if this generalization is known?
Generalized statement. For any integer $n>0$ any linearly trivial bundle on any smooth degree $n$ hypersuface $V_n\subset \mathbb CP^{n!}$ CP^{4n}$ is trivial. (note that $n!>>n$ this is why I chose this dimension, but I guess $10n$ or $10n^3$ will do as well)
Idea of the proof. One can easily see that on $V_n$ any two points can be joined by a chain of two projective lines. Moreover for two points $x,y$ the set of such two-lines paths from $x$ to $y$ is a connected projective variety. So let us trivialize the bundle at one point $x\in V_n$. Then extend this trivialization along each connected chain of $2$ lines on $V_n$ starting at $x$. I think that the extension will be independent of the choice of a chain since the space of all chains of lines that join from $x$ with to $y$ should be is a connected projective variety, while all trivialization of $E$ over $y$ is an affine variety.
Question 2. Does this reasoning sound plausible?
