Berezin 1961 + Kostant 1977 + Quillen 1985 superconnection: Z2-graded fiber-bundles; basis of supersymmetric field theory + Mathai-Quillen + index-theorem heat-kernel proofs.
Berezin 1961 + Kostant 1977 + Quillen 1985 superconnection: Z2-graded fiber-bundles; basis of supersymmetric field theory + Mathai-Quillen + index-theorem heat-kernel proofs.