Department of Mathematics and Computer Science, Ben Gurion University of the Negev, P.O. Box 653, Be'er-Sheva 84105, Israel.?e-mail: efrat@math.bgu.ac.il, IL
Abstract:
For an odd prime p we classify the pro-p groups of rank ≤ 4 which are realizable as the maximal pro-p Galois group of a field containing a primitive root of unity of order p. Received: 2 September 1997