Graph homomorphisms and chromatic numbers are foundational concepts in modern graph theory, with widespread applications that extend from combinatorial optimisation to theoretical computer science. A ...

Charts and graphs are essential to summarize an extensive data set in visual form. They make presenting and interpreting information easier and even more fun. Here’s how to make a chart or add a graph ...

Graph crossing numbers quantify the minimum number of edge intersections in any planar drawing of a graph, an essential parameter in both theoretical and applied graph theory. The study of crossing ...