Abstract
A proper edge colouring of a graph G is neighbour-distinguishing provided that it distinguishes adjacent vertices by sets of colours of their incident edges. It is proved that for any planar bipartite graph G with ?(G) = 12 there is a neighbour-distinguishing edge colouring of G using at most ?(G)+1 colours. Colourings distinguishing pairs of vertices that satisfy other requirements are also considered.
Original language | English |
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Pages (from-to) | 341-350 |
Number of pages | 10 |
Journal | Graphs and Combinatorics |
Volume | 22 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2006 |