A Low-Diameter Nash-Williams--Tutte Theorem
The Nash-Williams--Tutte theorem characterizes the existence of $k$ edge-disjoint spanning trees by a condition on every vertex partition. We prove that, for simple graphs, the same condition guarantees $k$ edge-disjoint spanning trees, each of diameter $O(n/\delta)$ and with $O((n/\delta)\log(\delta+1))$ internal vert...