Tag Archives: Lie algebras

The ADE affair, 6

Earlier this semester, we had a beautiful seminar by Pierre-Philippe Dechant, whose work has thrown some entirely new light on this beautiful work of art. I would like to explain a bit about this here. For more details, see his … Continue reading

Posted in exposition | Tagged , , , , , , , | Leave a comment

Magic square and Oxo cube

Most physicists now seem to think that the answer to the big questions about the universe is found in eleven dimensions, in something called M-theory. But to me it is very heartening that some mavericks are still prepared to look … Continue reading

Posted in exposition | Tagged , , , , , | 1 Comment

E7.5

I’m at the workshop on Algebra, Combinatorics, Dynamics and Applications in Belfast this week. Despite the extremely friendly title, this is a meeting that takes me well out of my comfort zone. An excellent thing: I learned about categorification and … Continue reading

Posted in events, exposition | Tagged , , | 1 Comment