Author Archives: Peter Cameron

About Peter Cameron

I count all the things that need to be counted.

From Lisbon to Prague

A plane, three trains, various buses and tubes, and I have been translated from Lisbon to Prague. Time to celebrate with some eye candy perhaps: from here to here: Prague is beautiful too, and full of magic:

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Poe on algebraists

Michael Kinyon reminded me of Edgar Allan Poe’s comments on algebraists in his story “The Purloined Letter”. Here they are in full. “But is this really a poet?” I asked. “There are two brothers, I know; and both have attained … Continue reading

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Computational algebra in Lisbon

This week I was at a very nice workshop on Computational Algebra in Lisbon. Rarely do I learn so many new things at a conference, although it was only three days in duration. Here are some of the highlights, roughly … Continue reading

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A trip to Coimbra

The University of Coimbra is the oldest in Portugal, having been founded in 1290 (younger than Oxford, older than St Andrews), but after bouncing back and forth between Coimbra and Lisboa for a while, it finally settled in Coimbra in … Continue reading

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Pedro Nunes

Pedro Nunes was a Portuguese mathematician of the sixteenth century, perhaps the greatest mathematician of his time in Europe. Yesterday I was treated to a very informative short presentation about Nunes and his work by the historian of science Henrique … Continue reading

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Quieter times

Things have been a little quieter for the last couple of weeks. Tomorrow, off to Portugal for a week and a half, then the Czech Republic for a week, then a couple of weeks to catch my breath before New … Continue reading

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Primitive switching classes

Last year I wrote here about switching classes of graphs for which the switching class has a primitive automorphism group. (I repeat the definitions briefly below.) I conjectured that, except for the trivial switching classes of the complete and null … Continue reading

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Spitalfields photos

Take a look at these astonishing photographs … http://spitalfieldslife.com/2014/06/29/an-astonishing-photographic-discovery/

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Automorphism groups of hypergraphs

I am getting old and forgetful, but I don’t think I said anything here about this problem yet. If I did, apologies for the repetition – but there is something new to report! In April, Laci Babai and I finally … Continue reading

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Metrics

HEFCE had a consultation on metrics. I found out about it too late to send in a submission. But you may want to read what two people whose opinions I respect, David Colquhoun and David Spiegelhalter, have to say.

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