# Connectivity

## Partitioning edge-connectivity ★★

Author(s): DeVos

**Question**Let be an -edge-connected graph. Does there exist a partition of so that is -edge-connected and is -edge-connected?

Keywords: edge-coloring; edge-connectivity

## Kriesell's Conjecture ★★

Author(s): Kriesell

**Conjecture**Let be a graph and let such that for any pair there are edge-disjoint paths from to in . Then contains edge-disjoint trees, each of which contains .

Keywords: Disjoint paths; edge-connectivity; spanning trees