Kasper Szabo Lyngsie - On neighbour sum-distinguishing $\{0,1\}$-edge-weightings of bipartite graphs

dmtcs:2632 - Discrete Mathematics & Theoretical Computer Science, June 4, 2018, Vol. 20 no. 1 - https://doi.org/10.23638/DMTCS-20-1-21
On neighbour sum-distinguishing $\{0,1\}$-edge-weightings of bipartite graphs

Authors: Kasper Szabo Lyngsie

    Let $S$ be a set of integers. A graph G is said to have the S-property if there exists an S-edge-weighting $w : E(G) \rightarrow S$ such that any two adjacent vertices have different sums of incident edge-weights. In this paper we characterise all bridgeless bipartite graphs and all trees without the $\{0,1\}$-property. In particular this problem belongs to P for these graphs while it is NP-complete for all graphs.


    Volume: Vol. 20 no. 1
    Section: Graph Theory
    Published on: June 4, 2018
    Accepted on: June 4, 2018
    Submitted on: January 5, 2017
    Keywords: Mathematics - Combinatorics

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