Keywords: Generalized Petersen 9 2 edge coloring.svg unique 3-edge-coloring of the generalized Petersen graph G 9 2 Recolored from File Generalized Petersen 9 2 Hamiltonicity svg 2013-09-10 23 46 25 own David Eppstein cc-zero Uploaded with UploadWizard Graph coloring; edge Generalized Petersen graph Graphs with 18 vertices |