Document Type: Research Paper
Department of Mathematics, Faculty of Arts and Sciences, Niğde Ömer Halisdemir University, Niğde, Turkey
Department of Mathematics, Karadeniz Technical University, Trabzon, Turkey
Department of Mathematics, Niğde Ömer Halisdemir University, Niğde, Turkey
In this paper, we investigate suborbital graphs formed by N(Gamma_0(N)-invariant equivalence
relation induced on Q^. Conditions for being an edge are obtained as a main tool, then necessary
and sufficient conditions for the suborbital graphs to contain a circuit are investigated.