Content about “
Ramsey theory

Article
Julian Sahasrabudhe

Counting on connections

Julian Sahasrabudhe wins a Whitehead Prize for combining different areas of maths using the power of combinatorics.

Blog post

Order in disorder

Can we always find order in systems that are disordered? Imre Leader says yes.
Article

Friends and strangers

Can we always find order in systems that are disordered? If so, just how large does a system have to be to contain a certain amount of order?
Article

Mathematical mysteries: Painting the Plane

Suppose you have an infinitely large sheet of paper (mathematicians refer to this hypothetical object as the plane). You also have a number of different colours - pots of paint, perhaps. Your aim is to colour every point on the plane using the colours available. That is, each point must be assigned one colour.
Article
blurry image of people

Friends and strangers

Sometimes a mathematical object can be so big that, however disorderly we make the object, areas of order are bound to emerge. Imre Leader looks at the colourful world of Ramsey Theory.