Rainbow Coloring in Graphs Resulting from Cartesian Product

  • Aleffer Rocha UTFPR
  • Sheila Morais Almeida UTFPR

Abstract


The rainbow connection number of a connected graph G, denoted by rc(G), is the minimum number of colors needed to color the edges of G, so that every pair of vertices is connected by at least one path in which the colors of the edges are pairwise distinct. In this work we determine the rainbow connection number for the graphs Cm × Pn when m is odd and Cm × Cn when m and n have distinct parities. For the case in which n and m are odd, we prove that rc(Cm × Cn) ≤ (m+n)/2.

References

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Published
2017-07-02
ROCHA, Aleffer; ALMEIDA, Sheila Morais. Rainbow Coloring in Graphs Resulting from Cartesian Product. In: PROCEEDINGS OF THE THEORY OF COMPUTATION MEETING (ETC), 2. , 2017, São Paulo. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2017 . p. 29-32. ISSN 2595-6116. DOI: https://doi.org/10.5753/etc.2017.3184.