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# Tag Archives: amenability

## Permutation groups and transformation semigroups

When I first decided to apply to the LMS to run a Durham symposium on Permutation Groups and Transformation Semigroups, I had a fairly clear idea of what I wanted: topics (both finite and infinite) where the techniques and results … Continue reading

## Intersecting spheres

Sometimes the real world and the blogosphere intersect, as they did yesteray. Yemon Choi, from Saskatchewan, whose blog Since it is not … has been on my sidebar for quite some time and has survived my occasional culls, gave a … Continue reading

## London Combinatorics Colloquia, 2

It’s that time of year again, and while I miss the buttercups in Reading, we had as usual a feast of interesting mathematics and a large and enthusiastic audience. It was a bit more tightly focussed than I would have … Continue reading

Posted in events, exposition
Tagged amenability, Ben Green, Cayley graphs, Endre Szemeredi, Gabor Kun, Noga Alon, Norman Biggs, Regularity Lemma, sum-free sets
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