Displaying similar documents to “Quantum field theory over 𝔽 q .”

On magic and supermagic line graphs

Jaroslav Ivančo, Z. Lastivková, A. Semaničová (2004)

Mathematica Bohemica

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A graph is called magic (supermagic) if it admits a labelling of the edges by pairwise different (consecutive) positive integers such that the sum of the labels of the edges incident with a vertex is independent of the particular vertex. We characterize magic line graphs of general graphs and describe some class of supermagic line graphs of bipartite graphs.

On magic joins of graphs

Jaroslav Ivančo, Tatiana Polláková (2012)

Mathematica Bohemica

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A graph is called magic (supermagic) if it admits a labeling of the edges by pairwise different (and consecutive) integers such that the sum of the labels of the edges incident with a vertex is independent of the particular vertex. In this paper we characterize magic joins of graphs and we establish some conditions for magic joins of graphs to be supermagic.