Mathematicians have proved that copies of smaller graphs can always be used to perfectly cover larger ones. On January 8, three mathematicians posted a proof of a nearly 60-year-old problem in ...

“Rainbow colorings” recently led to a new proof. It’s not the first time they’ve come in handy. Recently, Quanta reported on the new solution to a problem called Ringel’s conjecture. Part of the proof ...

Security graphs help companies visually depict their environment and write effective policies. AI helps make the graphs more accurate and useful. Security graphs have been around for more than a ...