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 vertex ...

Keywords Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when ...

Keywords Learn how to solve particle motion problems. Particle motion problems are usually modeled using functions. Now, when ...

In 1950 Edward Nelson, then a student at the University of Chicago, asked the kind of deceptively simple question that can give mathematicians fits for decades. Imagine, he said, a graph — a ...