Kader S.2019-08-012019-08-0120170911-0119https://dx.doi.org/10.1007/s00373-017-1852-xhttps://hdl.handle.net/11480/1771In this paper, we investigate suborbital graph for the normalizer of ?0(N) in PSL(2 , R) , where N will be of the form 2 23 p2, p is prime number greater than 3 and p?1(mod3). Then we give edge and circuit conditions on graphs arising from the imprimitive action of the normalizer. © 2017, Springer Japan KK.eninfo:eu-repo/semantics/closedAccessCircuitImprimitive actionNormalizerSuborbital graphArticle3361531154210.1007/s00373-017-1852-x2-s2.0-85031426127Q2WOS:000415765000014Q4