- Thread starter
- #1

- Apr 14, 2013

- 4,713

I got stuck at the following exercise... Could you give me an idea how to show this?

Let $G=(V,E)$ be a connected graph and $u,v$ $\epsilon$ $V$.If $d(v,u)=k$,then there is a path $v=v_{1},v_{2},....,v_{k+1}=u$ so that $\{v_{i},v_{j}\}$ doesn't belong in $E$ for $j \geq i+2$. Especially,there can't be repeated vertices.