Iranian Mathematical Society (IMS) Bulletin of the Iranian Mathematical Society 1017-060X Articles in Press 2011 05 30 An Alexandroff Topology on Graphs en hadi khatibzadeh Zanjan university, Zanjan abbas jafarzadeh Ferdowsi University of Mashhad seyed majid jafarian amiri Zanjan university 2011 05 09 Locally finite graph Alexandroff topology finite topological spaces