Suborbital graphs for the normalizer of Γ0(N)

Abstract

In this paper we examine some properties of suborbital graphs for the normalizer N of Γ<inf>0</inf>(N) in PSL(2,R) and show that, if N/Γ<inf>0</inf>(N) and the set of orbit representatives are denoted by B and Ω respectively, the permutation group (B, Ω) is regular and m-regular where m is an odd natural number. © TÜBİTAK.