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Who are these bright young group theorists in Durham in 1977? Thanks to John O’Connor for the picture.
It turns out that what I was suffering last week in Istanbul was not the effect of a bang on the head (though that may have contributed perhaps) – I had shingles. Shingles is caused by the same virus as … Continue reading
Today Peter Keevash finished four and a half hours of lectures on his latest improvement of his result on the existence of designs. I have heard him talk on this before, but in a one-hour talk he had time to … Continue reading
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
The latest bureaucratic nightmare to affect universities is Right to Work checks. The covering letter for these regulations asserts the following: Right to Work checks now need to be done for any visitor (in advance to their visit) to the … Continue reading
Here is the solution to the puzzle about the Clebsch graph I posed at the weekend. Since Gordon and Tony (and probably others) have already solved it, I am giving you my solution now. The puzzle was: Suppose we delete … Continue reading