%0 Journal Article %A Bahadir O. Guler and Serkan Kader and Murat Besenk %D 2008 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 19, 2008 %T On Suborbital Graphs of the Congruence Subgroup r 0(N) %U https://publications.waset.org/pdf/5692 %V 19 %X In this paper we examine some properties of suborbital graphs for the congruence subgroup r 0 (N) . Then we give necessary and sufficient conditions for graphs to have triangels. %P 499 - 502