Tag Archives: integral graphs

Moonlighting

In the last week of August, I attended for the first time a virtual conference. This was the 2020 Ural Workshop on Group Theory and Combinatorics, organised by Natalia Maslova at the Ural Federal University in Yekaterinburg and her colleagues. … Continue reading

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Pilsen, days 3 and 4

After the rush of the first two days, things quietened down a bit, so I can stop and look around me. The conference logo, and an explanation, is here. Norman Biggs, one of the pioneers of algebraic graph theory, speculated … Continue reading

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