Anti-Ramsey theory in graphs is a branch of combinatorial mathematics that examines the conditions under which a graph, when its edges are coloured, must necessarily contain a ‘rainbow’ subgraph – a ...

Christian Horner was never told why he was given the boot by Red Bull earlier this year after two decades with the team but his old enemy Toto Wolff has a theory. Horner, who was dismissed in July 12 ...

One day in November, a product strategist we’ll call Michelle (not her real name), logged into her LinkedIn account and switched her gender to male. She also changed her name to Michael, she told ...