Skip to main content
6 events
when toggle format what by license comment
Sep 19, 2019 at 10:33 comment added Ville Salo I prove this in two parts above because the first lemma was what I needed myself and the second is just to show you can get an axial from it. But I think the first lemma could be strengthened so axial elements drop more directly, by instead for any $A$ finding $k$ so $h_1$ is connected to $kh_2$ in $G \setminus (A \cup kA)$. The proof should be exactly the same, and then $k$ seems clearly axial if $h_1$ and $h_2$ are in distinct components of $G \setminus A$.
Sep 19, 2019 at 8:24 history edited Ville Salo CC BY-SA 4.0
added 222 characters in body
Sep 19, 2019 at 8:08 history edited Ville Salo CC BY-SA 4.0
added 1235 characters in body
Sep 19, 2019 at 7:24 history edited Ville Salo CC BY-SA 4.0
added 152 characters in body
Sep 19, 2019 at 7:17 history edited Ville Salo CC BY-SA 4.0
added 152 characters in body
Sep 19, 2019 at 6:56 history answered Ville Salo CC BY-SA 4.0