University of Kashan Mathematics Interdisciplinary Research 2538-3639 4 2 2019 12 01 On the Configurations with n Points and Two Distances 213 225 45816 10.22052/mir.2017.81496.1056 EN Ali Asghar Rezaei ‎Department of Pure Mathematics, ‎Faculty of Mathematical Sciences‎, ‎ ‎University of Kashan, ‎Kashan‎, ‎I. R. Iran Journal Article 2017 04 07 In this paper we investigate the geometric structures of M(n, 2) containing n points in R^3 having two distinct distances. We will show that up to pseudo-equivalence there are 5 constructible models for M(4, 2) and 17 constructible models for M(5, 2). Constructible models distinct distances isomorphic graphs pseudo-equivalent models https://mir.kashanu.ac.ir/article_45816_fa687f17a0883ef1c1290ad251cdd442.pdf