Canad. J. Math. 50(1998), 1189-1208
Printed: Dec 1998
Abelian closed subgroups of the Galois group of the pythagorean closure
of a formally real field are described by means of the inertia group of
suitable valuation rings.
12F10 - Separable extensions, Galois theory
12J20 - General valuation theory [See also 13A18]