By Skip Garibaldi

This quantity issues invariants of G-torsors with values in mod p Galois cohomology - within the feel of Serre's lectures within the booklet Cohomological invariants in Galois cohomology - for varied uncomplicated algebraic teams G and primes p. the writer determines the invariants for the phenomenal teams F4 mod three, easily attached E6 mod three, E7 mod three, and E8 mod five. He additionally determines the invariants of Spinn mod 2 for n