Tag Archives: Ben Green

Green on derangements

I have to mention Ben Green again. Yesterday he gave a lovely colloquium talk on a problem I had cracked my head against some years ago without much success. As usual with derangements, the story begins with a classical result: … Continue reading

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Caps in AG(n,3)

For the past week and a half I have done little but mark exam papers. At some point during this, I looked at Tim Gowers’ blog, and read that a very significant improvement had very recently been made on the … Continue reading

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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

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