University of GuilanJournal of Algebra and Related Topics2345-39313120150716Line graphs associated to the maximal graph1111209ENA. SharmaUniversity of DelhiA. GaurUniversity of Delhi20150217 diam(Gamma(R))$. We have shown that the complement of the maximal graph $G(R)$, i.e., the comaximal graph is a Euler graph if and only if $R$ has odd cardinality. We also discuss the Eulerian property of the line graph associated to the comaximal graph.]]>http://jart.guilan.ac.ir/article_1209_6febd2a7a22b03870dcd02ddde00b032.pdf