Serre lemma for tree actions
= Serre lemma for tree actions
{c}
If two elliptic isometries $g,h$ of a tree have elliptic product $gh$, then their fixed subtrees intersect.
= Serre lemma for tree actions
{c}
If two elliptic isometries $g,h$ of a tree have elliptic product $gh$, then their fixed subtrees intersect.