Abstract. Coxeter and Dynkin diagrams classify a wide variety of structures, most notably finite reflection groups, lattices having such groups as symmetries, compact simple Lie groups and complex ...
Feb 19, 2008 Second workshop on “Categories, Logic and Foundations of Physics” in London. Higher Gauge Theory, TQFT and Quantum Gravity in Lisbon Dec 14, 2010 There’s a workshop and school on Higher ...