This book is the result of a short course on the Galois structure of S-units that was given at The Fields Institute in the fall of 1993. Offering a new angle on an old problem, the main theme is that this structure should be determined by class field theory, in its cohomological…
This book is the result of a short course on the Galois structure of S-units that was given at The Fields Institute in the fall of 1993. Offering a new angle on an old problem, the main theme is that this structure should be determined by class field theory, in its cohomological…
Introduction The Tripod Restriction, deflation; change of maps, and variance with $S$ Definition of $\mho_S$; $\Omega_\Phi$ as a shadow of $\mho_S$ $\mho_S$ over the maximal order in the case when $G$is abelian Local considerations Towards a representing homomorphism for $\Omega…