Tác giả: Skip Garibaldi

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This volume concerns invariants of $G$-torsors with values in mod $p$ Galois cohomology-in the sense of Serre’s lectures in the book Cohomological invariants in Galois cohomology-for various simple a …

This volume is concerned with algebraic invariants, such as the Stiefel-Whitney classes of quadratic forms (with values in Galois cohomology mod 2) and the trace form of etale algebras (with values i …