Displacement function
= Displacement function
{title2=$d_g(x)$}
For an isometry $g$ of a metric space, its displacement function is $d_g(x)=d(x,gx)$. It is $2$-Lipschitz.
= Displacement function
{title2=$d_g(x)$}
For an isometry $g$ of a metric space, its displacement function is $d_g(x)=d(x,gx)$. It is $2$-Lipschitz.