Suborbital graphs for the Atkin--Lehner group
Tuncay Köroğlu, Bahadır Özgür Güler, Zeynep Şanlı · TURKISH JOURNAL OF MATHEMATICS · 2017
We investigate suborbital graphs for an imprimitive action of the Atkin-Lehner group on a maximal subset of extended rational numbers on which a transitive action is also satisfied. Obtaining edge and some circuit conditions, we examine some combinatorial properties of these graphs.