De Grey pitched the problem of finding the minimal five-color graph to Terence Tao, a mathematician at the University of California, Los Angeles, as a potential Polymath problem.

See how to style the headlines and axis text in your ggplot graphs with the ggtext package for R ...

The problem of how to fill in those colors, however, proved to be a different beast. Vizing came up with his own coloring algorithm, but it was slow. He started by looking at the time it would take to ...

But that doesn't mean five is the absolute minimum. Mathematicians know that it's possible that a graph will come along requiring six colors of paint, or even seven.

Graph reconfiguration and colouring problems investigate the transition between feasible solutions of a graph colouring instance. The central challenge is to determine a series of elementary ...

B-Chromatic Number and Graph Coloring Publication Trend The graph below shows the total number of publications each year in B-Chromatic Number and Graph Coloring.