Atiyah-Singer 1963 (Abel 2004): ind(D) = integral_M ch(sigma_D) td(TM); recovers Riemann-Roch / Hirzebruch / Gauss-Bonnet / spin-Dirac; foundation of geometric quantization.
Atiyah-Singer 1963 (Abel 2004): ind(D) = integral_M ch(sigma_D) td(TM); recovers Riemann-Roch / Hirzebruch / Gauss-Bonnet / spin-Dirac; foundation of geometric quantization.