IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE, cilt.42, sa.A4, ss.2167-2174, 2018 (SCI-Expanded)
In this paper, we study the action of N-P(Gamma) which is the normalizer of modular group Gamma in the Picard group P on the extended rational numbers (Q) over cap. We will investigate suborbital graphs arising from this action and some of its properties.