Yun Wang

collaborators

2 papers

math.CO2023

Arc-disjoint out- and in-branchings in compositions of digraphs

Joergen Bang-Jensen, Yun Wang

An out-branching $B_{u}^{+}$ (in-branching $B_{u}^{-}$ ) in a digraph $D$ is a connected spanning subdigraph of $D$ in which every vertex except the vertex $u$ , called the root, has in-degr…

math.CO2023

Arc-disjoint out-branchings and in-branchings in semicomplete digraphs

Joergen Bang-Jensen, Yun Wang

An out-branching $B_{u}^{+}$ (in-branching $B_{u}^{-}$ ) in a digraph $D$ is a connected spanning subdigraph of $D$ in which every vertex except the vertex $u$ , called the root, has in-degr…