He wanted to be a poet, then a science journalist. Only in his last year in college did Dr. Huh discover math as a calling. By Kenneth Chang Most top mathematicians discovered the subject when they ...

Graph colouring is a fundamental problem in both theoretical and applied combinatorics, with significant implications for computer science, operational research and network theory. At its essence, ...

We derive a formula for the chromatic polynomial of a chordal or a triangulated graph in terms of its maximal cliques. As a corollary we obtain a way to write down an explicit formula for the ...