Displaying similar documents to “On linear layouts of graphs.”

Track layouts of graphs.

Dujmović, Vida, Pór, Attila, Wood, David R. (2004)

Discrete Mathematics and Theoretical Computer Science. DMTCS [electronic only]

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On (p, 1)-total labelling of 1-planar graphs

Xin Zhang, Yong Yu, Guizhen Liu (2011)

Open Mathematics

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A graph is 1-planar if it can be drawn on the plane so that each edge is crossed by at most one other edge. In this paper, it is proved that the (p, 1)-total labelling number of every 1-planar graph G is at most Δ(G) + 2p − 2 provided that Δ(G) ≥ 8p+4 or Δ(G) ≥ 6p+2 and g(G) ≥ 4. As a consequence, the well-known (p, 1)-total labelling conjecture has been confirmed for some 1-planar graphs.