Z2nm-supermagic labeling of Cn#Cm

Dalibor Froncek, James McKeown, John McKeown, Michael McKeown


A Γ-supermagic labeling of a graph G = (V, E) with ∣E∣ = k is a bijection from E to an Abelian group Γ of order k such that the sum of labels of all incident edges of every vertex xV is equal to the same element μ ∈ Γ. We present a Z2nm-supermagic labeling of Cartesian product of two cycles, CnCm for n odd. This along with an earlier result by Ivančo proves that a Z2nm-supermagic labeling of CnCm exists for every n, m ≥ 3.


vertex-magic edge labeling, supermagic labeling, group supermagic labeling

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DOI: http://dx.doi.org/10.19184/ijc.2018.2.2.1


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