DIVISOR GRAPHS WITH FOUR TRIANGLES

DIVISOR GRAPHS WITH FOUR TRIANGLES

KM. KATHIRESAN, R. MUTHUKAMATCHI

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Abstract. In this paper, we investigate divisor graphs with four triangles and estab- lish a forbidden subgraph characterization for all divisor graphs containing four triangles.

Keywords:Divisor graph, divisor labeling, divisor digraph.

AMS Subject Classification:05C12, 05C20, 05C78.