Let M$M$ be a Riemannian manifold, x$x$ and y$y$ are two pintspoints in M$M$. Assume that x$x$ is not in the cut locus of y, then whether$y$. Does there exist a neighborhood U$U$ of x$x$ and a neighborhood V$V$ of y$y$ such that for every point u$u$ in U$U$ and for every point v$v$ in V$V$ we have that u$u$ is not in the cut locus of v$v$?