# A weak fixed point property for Grassmannian

Let $f$ be a continuous function on complex Grassmannian $G(k, 2n+1)$. Is it true to say that there is a $k$-plane $Y$ such that $Y$ has nontrivial intersection with $f(Y)$?

A motivation for this question is the following alternative proof for fixed point property of $CP^{2n}$:

Assume that $f$ is a map on $CP^{2n}$ without fixed point. Let $l$ be the canonical line bundle on $CP^{2n}$. By $f^*(l)$ we mean the pull back bundle. Then $l$ has trivial intersection with $f^*(l)$, since $f$ has no fixed point. This implies that a complement of $l$, in the $2n+1$ trivial bundle, has a sub-bundle $f^*(l)$. This is a contradiction because the Chern class of each complement of the canonical line bundle is $1-x+x^2-.....+x^{2n}$, which does not have a rational root$. So our main question has affirmative answer if the answer to the following question is affirmative: Is it true to say a that a complement of canonical$k$plane bundle on$G(K, 2N+1)$in the trivial$2n+1$bundle does not have a$k\$-dimensional sub-bundle?