Arithmetic Duality Theorems by James S. Milne (2006)
= Arithmetic Duality Theorems by James S. Milne (2006)
{c}
{tag=Work by James S. Milne}
{title2=second edition, 2006}
https://www.jmilne.org/math/Books/ADTnot.pdf
ChapterI, §8, printed p.102, defines the relative Weil group as a quotient by the closure of a commutator subgroup, identifies its extension class and describes its topology; Example8.1(a) specifies the local absolute Weil-group topology.