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Aug 28, 2010 at 21:11 comment added ABh What about if edge colorings are defined as a function of vertex coloring? Or if vertex colorings are defined as a function of edge colorings? Either of these situations would reduce the number of possible edge and vertex conjoint labelings. @tonyhuynh, is there a name for this kind of coloring where there are both edge and vertex labels simultaneously?
Mar 11, 2010 at 15:59 history answered Tony Huynh CC BY-SA 2.5