Reps realised as cohomology of flag-varieties: Borel-Weil-Bott theorem H^*(G/B, L_λ). Beilinson-Bernstein localisation. Springer correspondence. Foundation of post-1990 rep theory.
Reps realised as cohomology of flag-varieties: Borel-Weil-Bott theorem H^*(G/B, L_λ). Beilinson-Bernstein localisation. Springer correspondence. Foundation of post-1990 rep theory.