Popular Science

Featured video

01

Galois Theory in 5 Minutes

Popular-science video, 5 minutes

Why can't the quintic equation be solved with a formula? A five-minute visual story about symmetry, groups, and the twenty-year-old who explained why.

02

Deligne–Lusztig Theory: Representations from Geometry

Popular-science video, about 10 minutes

Where do the missing representations of a finite group of Lie type come from? Part I sketches the general theory; Part II computes the cohomology of Drinfeld’s curve for SL₂ over a finite field.