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# Category Archives: exposition

## Curves

Just back from an enjoyable evening at Gresham College, where Jan van Maanen from Utrecht gave the BSHM–Gresham lecture marking the tercentenary of the death of Leibniz next month, preceded by warm-up acts by Snezana Lawrence and my colleague Kenneth … Continue reading

## Algebraic properties of chromatic roots

It has been a long time coming. I wrote back in 2011 about the work Kerri Morgan and I were doing on algebraic properties of chromatic roots. A paper has just gone on the arXiv. I will just recap here, … Continue reading

## Perth, week 3

The black swan is the emblem of Western Australia – but it seems a little odd that, on the State coat of arms, there is a picture of one being cooked in a large pot of water by two kangaroos … Continue reading

Posted in events, exposition, geography
Tagged Agrawal's conjecture, black swan, finite geometry, flow polynomials
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## Reducts and Reed-Muller codes

While I was in Adelaide, supposedly on holiday, Csaba Szabó sent me a preprint of a paper he had written with his student Bertalan Bodor. I read it with interest, and was able to make a small remark on the … Continue reading

## Perth, week 1

The first week of the visit is over. The weather has been quite cold, but it is likely to improve as time goes on. The best day so far was yesterday, when we went to Yanchep National Park and had … Continue reading

Posted in doing mathematics, exposition
Tagged derangements, H. Zantema, Jordan's theorem
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