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Peter Cameron's Blog

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Peter Cameron's Blog

22.06.2025

Travels, 9 | Peter Cameron's Blog

A couple of shocks awaited us before the taxi came. First, I looked up the flight status. Because it was not yet midnight, it gave me Monday's flight, whose status was "CANCELLED". (We knew about this because we had heard that the plane had to turn back with a fault, but it took me a…

Peter Cameron's Blog

26.06.2025

Travels, 10 | Peter Cameron's Blog

Nearly ten years ago, I spent a month in the town of Aveiro, in Portugal. It was a very intense, hard-workking month; with Maria Elisa Fernandes and Dimitri Leemans, I was working towards what we named the ``Aveiro Theorem'', which gave the maximal rank of an abstract regular polytope whose automorphism group is an alternating…

Peter Cameron's Blog

03.07.2025

Travels, 11 | Peter Cameron's Blog

The next morning, after a very good hotel breakfast, we were checked out and in the lobby, waiting (with Cheryl Praeger) to be picked up and driven to the next event, a workshop on the Road Closure Problem. Here is some background for the mathematically inclined. Let G be a finite permutation group on a…

Peter Cameron's Blog

05.07.2025

Thank you, JoAnne Growney | Peter Cameron's Blog

My talk at the Évora conference was about the abstract/concrete dimension of mathematics, illustrated by examples from my work. In the course of preparing it, I came across the following, from the book Mathematics, Poetry and Beauty, by Ron Aharoni: … the heart of the poem is given to the concrete, and it is in…

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