Abstract

An equitablek-partition of a graph G is a collection of induced subgraphs (G[V1],G[V2],…,G[Vk]) of G such that (V1,V2,…,Vk) is a partition of V(G) and −1≤|Vi|−|Vj|≤1 for all 1≤i<j≤k. We prove that every planar graph admits an equitable 2-partition into 3-degenerate graphs, an equitable 3-partition into 2-degenerate graphs, and an equitable 3-partition into two forests and one graph.

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