I like the isomorphism of the homotopy group of the 1-sphere with the integers in the bottom right corner.

Today the University of Edinburgh was privileged to welcome award-winning photographer
James Glossop
to the School of Mathematics. His task was to photograph
Sir Michael Atiyah
for an article in
The Times
(to appear next week) and he asked for a blackboard to be decorated with mathematical equations to form the backdrop to this photo. It was a joint effort between
Andrew Ranicki
,
Julia Collins
,
Patrick Orson
, and (of course) Sir Michael, and contains all their favourite formulae, numbers and ideas in mathematics. What would

*you*have drawn on the board?James kindly took this photo of the board after he was finished getting his shots of Sir Michael. I like the heavenly light shining in from above!

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